Fundal height of the uterus (UFH) and its dynamics by week of pregnancy. What is the height of the uterine fundus? Gdm above normal

The volume and size of the abdomen are important parameters for determining the normal development of pregnancy.

What affects belly size during pregnancy?

During pregnancy, the belly grows due to the development of the child, the growth of the uterus and an increase in the volume of amniotic fluid. At the very beginning of pregnancy (up to about the 12th week), the size of the abdomen of expectant mothers does not change, since the growing uterus does not yet reach the edge of the pubis. But starting from the 2nd trimester, the uterus gradually rises to the navel, the woman’s belly begins to round, and those around her notice changes in her condition.

Of course, all this is very individual, and a pregnant woman’s belly may grow earlier or later, and may also be somewhat behind or ahead of the norm. depending on the following factors:

The size of the fetus and its position;
Anatomical features and build of a woman;
Weight gain of the expectant mother;
Number of embryos;
Heredity;
Volume of amniotic fluid.

However, there are some limits, serious deviations from which may indicate some disturbances in the development of the baby and the course of pregnancy.

How does a pregnant belly grow?

Throughout pregnancy, the circumference and shape of a woman’s abdomen changes in accordance with changes in the size of the baby, uterus and amniotic fluid volume in approximately the following way.

To determine exactly how the child and pregnancy in general are developing, it is necessary to regularly measure the parameters of a woman’s abdomen and carefully monitor their changes.

Belly Measurement Options

It is not the parameters themselves that are important, but their dynamics

The main parameters that the gynecologist will measure at each preventive examination from about the fifteenth week are the circumference of the woman’s abdomen and the height of the uterine fundus.

It is these indicators that are most informative; that is, based on them, it is possible to monitor the dynamics of the child’s growth and its disturbances. It should also be noted that it is not the parameters themselves that are of interest and value, but their dynamics, which are observed over at least several weeks.

The general measurement standards are that before the procedure you need to empty your bladder, then lie down on a hard surface, straighten your knees and completely relax.

Abdominal circumference during pregnancy

The abdominal circumference should be measured so that in front the meter tape passes along the line of the navel, and in the back along the line of the lumbar deflection. Abdominal circumference (AC) norms during pregnancy are determined using a special table, however, it should be noted that it allows an error of approximately two to three weeks - this is about 10 cm.

Week of pregnancy	Coolant, cm
20	70-75
22	72-78
24	75-80
26	77-82
28	80-85
30	82-87
32	85-90
34	87-92
36	90-95
38	92-98
40	95-100

If your abdominal circumference is greater than normal

If during the next gynecological examination it turns out that the pregnant woman’s body fluid is much higher than normal, she is recommended to undergo additional examination to exclude the following pathologies:

(when the volume of amniotic fluid is about 2-5 liters, and in some cases reaches 10-12 liters);
Hydatidiform drift;
Chorionepithelioma.

In addition, if a woman is more than 38 weeks pregnant,

a belly that is too large may indicate a transverse position of the fetus, which is a rather serious pathology.

If your abdominal circumference is less than normal

Too small an abdominal circumference, which is significantly “lag behind” the norm, may indicate:

Delay in the baby's development due to placental insufficiency;
, usually accompanying severe forms;
Post-maturity.

If, during the next inspection, it turns out that

The life expectancy has decreased significantly compared to previous indicators, and is accompanied by a weakening of the child’s movements or even their absence; the woman requires urgent hospitalization.

Such symptoms can be observed in cases of severe complications or even intrauterine fetal death.

Fundal height of the uterus during pregnancy

The height of the uterine fundus (UFH) is very important for diagnosing any abnormalities in the condition of the expectant mother, as well as for calculating the gestational age by week. On average, in women of reproductive age, the length of the uterus is approximately 8 cm, and during the period of bearing a child it gradually increases, and by the 40th week it reaches approximately the same length - 40 cm.

VMR is measured using a centimeter tape, the zero end of which must be applied to the beginning of the pubic bone, then move up and stop at the point where the more elastic part of the abdomen turns into a softer one. The resulting distance will be the indicator that gynecologists call the height of the uterine fundus.

Normally, it should correspond to the intrauterine age of the child (gestational age by week) plus or minus 1-3 cm.

Weeks of pregnancy	Height of the uterine fundus, cm
8-9	8-9
10-11	10-11
12-13	10-11
14-15	12-13
16-17	14-19
18-19	16-21
20-21	18-24
22-23	21-25
24-25	23-27
26-27	25-28
28-29	26-31
30-31	29-32
32-33	30-32
34-35	31-33
36-37	32-33
38-39	32-37
40-41	35-38

If the height of the uterine fundus is higher than normal

The fundus of the uterus in a pregnant woman is higher than normal in the following cases:

The child is too large;
Multiple pregnancy;
Incorrect presentation of the baby;
A pregnant woman has a narrow pelvis.

If the height of the uterine fundus is less than normal

This situation may indicate that the pregnant woman:

The term is incorrectly defined;
Fetal growth retardation;
Very wide pelvis.

By the way, sometimes these numbers can be used to approximately determine the weight of the fetus: for this, the height of the uterine fundus must be multiplied by the circumference of the abdomen. Obstetricians say that the error of this method is about 150 g, but pregnant women note that it is quite inaccurate, and sometimes the error can reach a kilogram.

Finally, it should be noted that it is strictly not recommended to independently measure BMR and WC during pregnancy and make diagnoses based on the obtained values - the likelihood of an error is too high, fraught with unnecessary stress.

Belly shape

The shape of the expectant mother's tummy is another indicator that gynecologists and obstetricians often pay attention to. It is influenced by many factors, including:

The dimensions of the child, the pace of its development and location;
The weight of the expectant mother, the shape of the pelvis and her physique, in particular, the thickness of the abdominal fat layer;
Number of embryos;
Condition of the abdominal muscles.

Of course, it is quite difficult to talk about any standards in this case, because even in one woman, with several different pregnancies, the tummy can look completely different, however, experts still note some connections between the characteristics of the expectant mother’s body and the characteristics of the course of pregnancy:

Ideally, the belly during normal pregnancy has a regular, ovoid, slightly pointed shape, and in first-time mothers it is directed with the sharp end upward, and when carrying a second, third, etc. child - point down. If the mother has a narrow pelvis, then the pointed shape of her abdomen will be especially pronounced in the second trimester.
Round or even square belly may be due to weak abdominal muscles, carrying a large child, or a large volume of amniotic fluid. Additionally, if a small, frail woman is carrying a baby that is slightly larger than normal, her belly may also appear large.
Large, spherical belly quite often indicates a polyhydramnios pregnancy, and therefore requires additional examination.
Pear-shaped belly It is also usually characteristic of pregnant women with too weak abs, the muscles of which are unable to hold the baby properly, so the stomach sags slightly downward.
Large, pointed belly occurs with twins, triplets, etc., as well as in mothers with characteristic anatomical features, that is, with a narrow pelvis.
Small, a neat, almost imperceptible tummy is sometimes a sign of oligohydramnios, but it can also occur in fragile women carrying an equally fragile, small-sized child.
Uneven, asymmetrical shape indicates an incorrect (transverse or oblique) presentation of the fetus. For example, with a transverse presentation, a woman’s tummy will look like a horizontally elongated oval.

Deviations from the norm

In what cases should a change in the shape of the abdomen bother a woman?

You need to urgently inform your doctor about this fact when the stomach takes on an asymmetrical shape, and the pregnant woman feels discomfort or pain.

This situation may indicate some disorders that require correction and even treatment.

Estimating the height of the uterine fundus by week of pregnancy has serious diagnostic significance. In addition to calculating the gestational age, gynecologists predict the condition of the fetus each week and suggest possible deviations from its normal development.

The length of the uterus is no more than 8 centimeters in a woman of reproductive age. Of these, the cervix occupies about 2.5 cm. Height - 4 cm. The uterus increases during pregnancy and by the 40th week of pregnancy it has a similar length - 40 cm. Before pregnancy, the weight of the organ is 50 grams. In the third trimester - about 4 kilograms.

Fundal height of the uterus by week - how to determine

In the early stages, we feel the size of the uterus through the vagina.
12th week - the uterus reaches the symphysis pubis.
From the 13th week it extends beyond the pelvic area and can be felt through the abdominal wall.
With the pregnant woman lying down, the distance between the pubic symphysis and the highest point of the uterus (fundus) is measured with a measuring tape.
The results are recorded in a notebook to track their dynamics.
Approximate dimensions of the height of the uterine fundus by week in centimeters: 8-9 weeks - 8-9; 16-17 weeks – 14-19; 38-39 weeks – 35-38.
The fundal height (FHR) approximately corresponds to the gestational age in weeks.

If at a certain period the height of the uterine fundus exceeds normal values, then the doctor may suspect a multiple pregnancy, and if less, low fetal growth rates, oligohydramnios, oblique or transverse position.

A one-time determination of the height of the uterine fundus is not very informative.

It should be noted that the size of the IRR at different stages of pregnancy is the statistical average. It differs in large and short women, who have anatomically different sizes of uteruses.

Fundal height of the uterus during pregnancy by week

IN 8-9 weeks the uterus is the size of a goose egg. Until this time, it cannot be felt through the abdominal wall, as it is located in the pelvic area. Only from 3 months - located above the pubis. The placental system begins to actively function, and the corpus luteum gradually disappears. The embryo begins to move and blood vessels form.

10-13 weeks. The length of the uterus is 11 cm. Toxicosis intensifies due to the cleansing of the mother’s body, which is rebuilt to normalize the trophism of the fetus.

14-16 weeks. The embryo completes the process of creating organs. The uterus increases to 14 cm.

16 weeks– the fundus of the uterus is located in the middle of the distance between the navel and the pubis.

17-18 weeks. The placental system has been formed. The fetus has a fully developed cerebellum, limbs, and immune system. The length of the uterus is 18-19 cm.

WITH 20th week The size of the uterine fundus begins to approximately correspond to the duration of pregnancy. So, at the 21st week, the distance between the pubis and the fundus of the uterus is approximately 21 cm. Subsequently, it increases weekly by 1 cm. The fundus of the uterus is projected at this stage below the navel by 2 fingers.

22-24 weeks. The embryo develops muscles and bones. Its weight is about 600 grams. At week 24, the pulmonary system begins to form. The uterus increases to 23 cm. In the 24th week, the fundus of the uterus is located in the navel with a height of 24 centimeters.

28 weeks The height of the uterine fundus is 28 cm. The uterine fundus is located 2 cm above the navel (two folded fingers).

29-30 weeks. In the third trimester, the uterus is about 31 cm. A pregnant woman’s blood pressure increases due to the large size of the fetus.

32 weeks– the location of the uterus is in the middle of the distance between the xiphoid process of the sternum and the navel (9th month), and is 32 centimeters.

36 weeks- on the line that connects both costal arches.

38 weeks. After the 38th week, the uterus begins to descend. The bottom of the organ puts pressure on the stomach and diaphragm. The mother digests food slowly and develops heartburn. The child's weight is 2100-2250 grams.

On 40th week VDM – 32 cm. The bottom is again located between the ribs and the navel. The pregnancy is considered full term. The baby is actively growing, and the mother’s body is preparing for childbirth. When the baby descends into the pelvis, labor begins.

Fundal height of the uterus by week, what affects it:

Fruit size
Anatomical features of the woman’s body,
Fetal position
Number of embryos
The severity of amniotic fluid.

If the fundus of the uterus during pregnancy is below normal

Low water,
Wide pelvis in large women
Erroneous values when determining the timing of pregnancy,
Delayed fetal development.

Assessment of the size of the uterine fundus during pregnancy should include a whole series of measurements.

If the fundus of the uterus is higher than normal during pregnancy

Narrow pelvis
Large fruit
Polyhydramnios,
Multiple pregnancy
Incorrect position.

Simultaneously with the height of the uterine fundus, gynecologists calculate the amount of amniotic fluid, which affects the development of the fetus. This indicator depends on the individual characteristics of the woman’s development and the overall thickness of the subcutaneous heat. At the end of pregnancy, both indicators allow you to calculate the weight of the fetus using the formula: IRR - abdominal volume. The normal value is approximately 3420 grams.

Fundal height of the uterus - this term is familiar to any woman who has been pregnant and has undergone examinations. This parameter is measured in expectant mothers during regular examinations by an obstetrician-gynecologist. What does it mean, what are the norms for this measurement at various stages of pregnancy, and what to do if there are deviations?

Fundal height of the uterus - what is it?

Fundal height of the uterus (UFH) is one of the most important parameters that determine the proper development of pregnancy. The uterus changes its size, adapting to the growing embryo, therefore, by how much the fundus of the uterus has risen, one can judge the size of the child, which, in turn, provides information about the age of the embryo and possible pathologies in its development.
Along with the growth of the embryo, the uterus also grows - its bottom rises higher and higher

In the early stages of pregnancy, this parameter cannot be measured - the uterus “hides” behind the pubic bone and its size is still too small to be felt. Usually the uterus rises above the pubic symphysis (and it becomes possible to find it by palpation) at a period of 16 weeks, sometimes a little earlier, but not earlier than 10–12 weeks.

Features of changes in the uterus (repeated or multiple pregnancies)

The most common physiological (that is, not dangerous) reason for deviation from the norm is a multiple pregnancy. Obviously, if there are two or more children in the uterus, its size will exceed the norms designed for pregnancy with one child. Usually, a multiple pregnancy is learned from the results of an ultrasound scan, much earlier than it becomes possible to measure the UMR parameter, but there are cases when, due to a certain position in the womb, only one baby is visible on an ultrasound scan, or, for example, a woman, for some reason, is not at all I did an ultrasound. In this case, a multiple pregnancy can be suspected by an excessively rapid increase in abdominal girth and uterine fundus height - of course, such a conclusion is not made based on this indicator alone, but is verified by additional examinations.

During multiple pregnancies, the uterus grows faster as children take up more space.

In addition, in the case of repeated pregnancies, the uterus increases in size faster than the first time, since it is no longer “virgin” and the abdominal muscles do not actively restrain its growth. It’s not for nothing that women notice that the next time they carry a child, the belly usually becomes visible to others earlier than the previous time. The height of the uterine fundus can also rise somewhat faster than what happened with the first baby, and, accordingly, exceed the calculated norms. However, if the dynamics of growth in the value of GMR at the same time maintains the correct pace, then there is no need to worry, this is normal.

Why is it important to monitor fundal height indicators?

The dynamics of changes in the AMR indicator allows us to judge the development of the child, possible pathologies of the fetus, high or low water, and inflammatory processes in the uterus. This is a non-invasive test that does not have any effect on the pregnant woman and/or fetus, it can be performed any number of times without any consequences, and when carried out correctly it gives important and accurate results.

Since measurements are made from the outside, the result is also influenced by the woman’s physical parameters - the presence/absence of excess weight, the shape of the pelvis, the thickness of fat deposits. In addition, the characteristics of the pregnancy itself also influence the position of the child in the expectant mother’s belly, the condition and attachment of the placenta, and the number of embryos. Therefore, some shifts in the positive or negative direction from the norm are usually not considered critical. The main importance is not so much the height of the uterine fundus itself, but rather its increase over the weeks of pregnancy.

How to measure the height of the uterine fundus

The height of the uterine fundus is measured very simply; all you need to do is have a regular tailor's tape with you. Various rulers will not be suitable for such measurements, because you will need to measure the length of the convex line. If desired, a woman can do this herself, but it is better if someone helps her, since measurements taken independently may not be accurate enough.

Video: measuring the height of the uterine fundus

So, to find out the UMR parameter, a pregnant woman should perform the following steps:

empty your bladder;
give access to your pelvis - loosen the belts, if any, lower or unfasten your trousers; the body from the pelvis to the chest should not be compressed by anything;
lie on your back with your legs extended;
find the beginning of the symphysis pubis - the place where the pubic bone is felt;
find the highest point of the uterus - to do this, palpate the abdomen along the midline from the pubic symphysis upward; where the dense part of the abdomen turns into the soft part, there is the desired fundus of the uterus;
Use a measuring tape to measure the distance between these two points.

Using a centimeter tape, measure the distance between the lower point of the uterus (it is located in the area of the pubic symphysis) and the upper

Standards for VDM indicators

The norm is considered to be the correspondence between the week of pregnancy and the height of the uterine fundus in centimeters, plus or minus 2–3 centimeters. That is, at the 16th week, for example, the VDM is from 13 to 19 centimeters, at the 30th week it is approximately 27–33. After the 38th week, the baby begins to prepare for childbirth, the stomach drops and the UMR readings decrease - this is normal.

Table: WYD by week of pregnancy

Deviations of the height of the uterine fundus from the norm

The deviation of the VDM value from the norm can be positive or negative.

Physiological reasons that the fundus of the uterus rises lower than it should be may be:

incorrect determination of the due date - if for some reason a woman missed the first ultrasound, at which the gestational age can be calculated accurate to the day, then the doctor cannot always accurately determine how many weeks the pregnancy will last;
wide pelvis - in this case the child is placed in a small uterus, so it does not need to grow up too quickly;
small size of the fetus (if this is a normal option);
genetic predisposition.

If the delay in the growth of AMD is caused by one of these reasons, then there is no need to worry - they are features, and not pathologies at all, and do not threaten the mother and child with anything dangerous. However, there is another list of factors that can cause lower VDM values:

oligohydramnios - when there is insufficient amniotic fluid, the uterus does not grow at the proper speed;
problems with the placenta - fetoplacental insufficiency, thin placenta, its premature aging;
intrauterine growth retardation;
infectious and inflammatory diseases;
intrauterine death of a child.

In my first pregnancy, the UMR indicator was 3-4 centimeters behind the norm. It seems that the discrepancy is not very large, but still, whatever one may say, it is a deviation from the norm. However, the dynamics in this case corresponded to the norm, all other parameters were in order, the examinations also did not reveal any problems. As a result, after giving birth, it turned out that I had oligohydramnios, and very “little” at that - fortunately, this did not affect the child’s condition in any way. Apparently, this is precisely what turned out to be the reason for the reduced VMR.

Excessively rapid growth of the height of the uterine fundus, which is not dangerous, is possible in the following situations:

large fetus (if it is hereditary and not the result of pathology);
excess body weight in a pregnant woman;
narrow pelvis;
placenta previa;
multiple pregnancy.

Pathological reasons for exceeding the VDM value include:

large fetus as a result of diabetes;
hydatidiform mole;
swelling of the placenta;
polyhydramnios.

Excessive amniotic fluid accelerates the growth of the uterus

If measures are not taken in a timely manner to eliminate the consequences of pathological causes of excess or lag of the GMR value from the norm, the results can be catastrophic - even the death of the pregnant woman. That is why, if the growth dynamics of the fetus slows down, you should undergo additional examinations as soon as possible to check the condition of the fetus and, if necessary, undergo a course of treatment. It is worth remembering that the main principle of treating deviations of the UMR from the norm during pregnancy is pathogenetic, that is, a low or high value of the height of the uterine fundus cannot be cured in itself; you need to find the cause of this deviation and work with it.

The height of the uterine fundus is a parameter whose importance is difficult to overestimate - it is easy to measure, and at the same time its value is an indicator of the condition of the fetus. The dynamics of VDM readings can warn in time about emerging problems and pathologies. It is important to remember that this indicator is only informative and not diagnostic; for a more accurate diagnosis, additional studies should be performed.

Fundal height of the uterus by week - how to determine

In the early stages, we feel the size of the uterus through the vagina.
12th week - the uterus reaches the symphysis pubis.
From the 13th week it extends beyond the pelvic area and can be felt through the abdominal wall.
With the pregnant woman lying down, the distance between the pubic symphysis and the highest point of the uterus (fundus) is measured with a measuring tape.
The results are recorded in a notebook to track their dynamics.
Approximate dimensions of the height of the uterine fundus by week in centimeters: 8-9 weeks - 8-9; 16-17 weeks – 14-19; 38-39 weeks – 35-38.
The fundal height (FHR) approximately corresponds to the gestational age in weeks.

A one-time determination of the height of the uterine fundus is not very informative.

It should be noted that the size of the IRR at different stages of pregnancy is the statistical average. It differs in large and short women, who have anatomically different sizes of uteruses.

Fundal height of the uterus during pregnancy by week

10-13 weeks. The length of the uterus is 11 cm. Toxicosis intensifies due to the cleansing of the mother’s body, which is rebuilt to normalize the trophism of the fetus.

14-16 weeks. The embryo completes the process of creating organs. The uterus increases to 14 cm.

16 weeks– the fundus of the uterus is located in the middle of the distance between the navel and the pubis.

17-18 weeks. The placental system has been formed. The fetus has a fully developed cerebellum, limbs, and immune system. The length of the uterus is 18-19 cm.

28 weeks The height of the uterine fundus is 28 cm. The uterine fundus is located 2 cm above the navel (two folded fingers).

29-30 weeks. In the third trimester, the uterus is about 31 cm. A pregnant woman’s blood pressure increases due to the large size of the fetus.

32 weeks– the location of the uterus is in the middle of the distance between the xiphoid process of the sternum and the navel (9th month), and is 32 centimeters.

36 weeks- on the line that connects both costal arches.

Fundal height of the uterus by week, what affects it:

Fruit size

23-27

The table shows that UMR in centimeters approximately corresponds to the gestational age in weeks, plus or minus 1-2 cm. At 36-37 weeks, the fundus of the uterus rises to the highest point during the entire pregnancy period, and begins to put pressure on the diaphragm, stomach, due to than food is digested much more slowly, and as a result, heartburn and heaviness in the stomach may appear. Starting from 38 weeks of pregnancy (about 2 weeks before birth), the fundus of the uterus drops by 2 - 3 cm. This is due to the fact that the fetal head is installed in the pelvic cavity.

Discrepancy between the height of the uterine fundus and the expected period

It is important to remember that UGM can be affected by fetal size, excess amniotic fluid, twins, abnormal fetal position and other features of pregnancy. Therefore, when determining the gestational age, VDM is taken into account in conjunction with other signs (last menstruation, first movement, etc.).

VDM is less than the gestational age.

At a gestation period of more than 28 weeks, the IMD above the pubic symphysis in centimeters approximately corresponds to the expected period of the baby in weeks. A lag of 3 cm or more from the norm for a given stage of pregnancy is considered pathological. The absence of an increase in IUGR within 2-3 weeks suggests the presence of intrauterine growth retardation (IUGR).

error in determining the gestational age;
delayed fetal development, abnormalities of its development;

During the examination, the gynecologist measures me and tells me the size.

I found this instruction on the internet.

1. Empty your bladder. This is necessary to accurately measure the height of the uterine fundus.

2. Lie on the bed with your legs straight.

3. Determine where the uterus ends. To do this, place your hands on the midline of the abdomen in the area of the pubic bone. Gradually move your fingers upward, trying to feel the place where the denser part of the abdomen turns into a soft one. This will be the bottom of the uterus.

4. Take a measuring tape and measure the resulting distance. Normally, the height of the uterine fundus corresponds to the obstetric period in weeks, plus or minus 2-3 centimeters. And only towards the end of pregnancy, a couple of weeks before birth, the baby descends into the small pelvis, and the height of the uterine fundus becomes several centimeters lower.

5. Too large a discrepancy between measurements and obstetric term may indicate either that the gestational age is set incorrectly, or oligohydramnios/polyhydramnios, etc. It is recommended to monitor the dynamics of uterine growth to ensure that the baby is developing normally.

Note:

The height of the uterine fundus in centimeters approximately corresponds to the gestational age in weeks plus or minus 2-3 cm. This range of fluctuations in UMR values takes into account the individual characteristics of each pregnant woman, and if this indicator is much lower than the expected week of pregnancy, then, given a combination of factors, we can assume a frozen pregnancy.

Fundal height of the uterus by week

The main changes in the female body during pregnancy are characteristic of the condition of the uterus. During the normal development of pregnancy, it is in the uterus that the fertilized egg is attached for growth and development in the future. To provide the necessary living space for the growing fetus, the size of the uterus constantly increases.

Changes in fundal height of the uterus by week during pregnancy

As the uterus grows during pregnancy, it will gradually rise higher and higher, reaching a maximum at around the 37th week of pregnancy. In this case, the height and size of the uterus are of rather important diagnostic importance. By taking these parameters into account, a specialist can establish the approximate duration of pregnancy, drawing conclusions on the characteristics of its course, determining the size and degree of development of the fetus, identifying possible deviations in its development in the early stages. Consequently, gynecologists attach great importance to examining and assessing the height and size of the uterus during each examination of the patient.

How is the height of the uterine fundus determined during pregnancy?

To determine the size of the uterus in the early stages, digital palpation through the vagina is used. However, already from the second trimester, after approximately 13-14 weeks of pregnancy, the uterus extends beyond the pelvic area, rising higher. In this case, it can already be palpated through the abdominal wall. Now the gynecologist will determine the size of the uterus each time, namely the height of the fundus. VDM (fundal height of the uterus) is the distance between the highest point of the uterus (fundus) and the upper point of the pubic symphysis.

The height of the uterine fundus is measured in centimeters with the woman lying on her back, using a special pelvis meter or a standard measuring tape. The doctor enters all the obtained indicators into the pregnant woman’s exchange card each time - for their control and comparison, an accurate understanding of the dynamics. When assessing these indicators, a table is used indicating the norms of compliance of the GMR with a specific stage of pregnancy.

The table used shows the norm indicators. They show that in centimeters the height of the uterine fundus approximately corresponds to a certain period of pregnancy per week +/- two to three weeks. In this range of fluctuations in UMR indicators, the individual characteristics of each pregnant woman are taken into account, including her physiological parameters.

If there is a significant discrepancy between the height of the uterine fundus and normal values during a certain period of pregnancy, the doctor may have doubts about any disturbances in the normal course of pregnancy. In particular, overestimated parameters may indicate that the fetus is too large or has polyhydramnios.

Low rates of fetal development, oligohydramnios, and oblique or transverse position of the fetus may be the reason for underestimated indicators of the fetus.

But you should not give in to worries and panic, resorting to premature and unconfirmed conclusions if the height of the uterine fundus does not correspond to the specific stage of pregnancy.

In particular, let's not forget about the possible error factor. After all, there is a possibility of error when determining a specific period.

The second factor that confirms that the worries are unjustified is that the cause of inflated indicators may be a multiple pregnancy.

The third factor is that indicators of the height of the uterine fundus remain uninformative on their own.

The dynamics of changes must be assessed. If from week to week, or every month, the uterus rises higher and higher, in accordance with normal dynamics, there is usually no special reason for concern. But if a certain violation is suspected, the doctor will direct the woman to undergo the necessary additional examinations (Doppler ultrasound, ultrasound, CTG, etc.), this appointment should not be neglected.

It should also be taken into account that two to four weeks before birth the baby begins to lower into the pelvis - the process is called abdominal prolapse. Also, at the same time, a slight decrease in the uterus occurs, the UMR indicator decreases by several centimeters.

Uterus during pregnancy

Determination of the height of the uterine fundus by week during pregnancy

Among the mandatory studies that are carried out by the attending physician to assess the normal and healthy course of pregnancy is the measurement of the height of the uterine fundus by week.

When a woman first sees a doctor, she is usually approximately 4 weeks pregnant. Moreover, the size of the uterus is similar to a chicken egg.

At 8 weeks of pregnancy, the size of the uterus increases, approaching a goose egg; by 12 weeks the uterus reaches the upper edge of the pubis. Then the height of the fundus of the uterus at each examination is determined by the doctor using a regular centimeter tape - a measurement is taken from the upper edge of the pubis to the fundus of the uterus.

The height of the uterine fundus by 16 weeks of pregnancy is determined at the middle of the distance between the pubis and the navel.

From the 12th week of pregnancy, the size of the uterus already corresponds to the week of pregnancy. Therefore, the size at week 21 is 21 centimeters and so on - the height of the uterine fundus increases by one centimeter every week

At the 24th week, the fundus of the uterus is determined at the level of the navel, and its height is also 24 cm.

The height of the uterine fundus at the 28th week of pregnancy is 28 cm, measured 2 cm above the navel.

The height of the uterine fundus at 32 weeks of pregnancy is 32 cm, determined between the fluff and the xiphoid process.

At the 36th week of pregnancy, the height of the uterine fundus is 36 cm, determined at the level of the costal arches. It is considered the highest position of the uterine fundus.

Closer to childbirth, the uterine fundus drops slightly; the height of the uterine fundus at 40 weeks is approximately 32 cm.

Of course, it should be taken into account that these are basically average statistical data; in fact, they cannot have completely the same sizes of growing uteruses in short or large, tall women.

Today, the maximum accuracy and reliability of the result can be obtained from ultrasound data, but quite often its implementation is not practical.

Consequently, gynecologists today in antenatal clinics determine the height of the uterine fundus week by week, based on the measurements obtained, in order to decide on additional studies to clarify the diagnosis.

What can affect the height of the uterine fundus by week:

Fundal height of the uterus by week

Throughout pregnancy, gynecologists measure standing height and uterine size week by week. This helps them not only determine the duration of pregnancy, but also make a conclusion about its course - whether there are developmental abnormalities in the fetus or whether the development is normal. Therefore, you should not be surprised that your leading doctor pays special attention to this organ during each examination. Remember, he is not worried about himself, but about you and your baby. Are you wondering how your pregnancy is going, but you can’t decipher the numbers? In today’s article we will tell you in detail what the height of the uterine fundus depends on by week, and also introduce you to the table in which the norms are set.

Before pregnancy, in women of reproductive age, the uterus has the following dimensions and weight: length - about 8 cm (maybe a little less or more), height - 3.6 - 4 centimeters, cervix - approximately 2.6 cm, weight - 45 -55 g. During pregnancy, the size and height of the uterine fundus changes week by week and by the end of the 3rd trimester at 40 weeks its length reaches 40 cm and weight 3.5-4.1 kg.

Fundal height of the uterus by week, how to determine:

at the beginning (in the first weeks), the gynecologist can determine its size only through a gynecological examination - through the vagina, palpating it;
at 11 and 12 weeks, the VSD of the uterus reaches the pubic symphysis;
from the 14th week it can already be felt through the abdominal wall, because its dimensions already extend beyond the pelvic region;
A fairly common method for determining height measurements and assessing the fundus of the uterus is measurement using a centimeter tape. The expectant mother is in a supine position, and her leading gynecologist measures the distance from the symphysis pubis to the fundus of the uterus;
The obtained data is recorded in a log in order to monitor further developments.
size of the height of the uterine fundus by week (measurements from the 8th week of pregnancy): 8-9 weeks - about 8-9 centimeters, 10, 11, 12 and 13 weeks of pregnancy - from 10 to 11 cm, at 14-15 weeks - from 12 to 13 cm, at 16-17 weeks - from 14 to 19 cm, at 18, 19, 20 and 21 weeks - from 18 to 24 cm, at 39-40 - from 35 to 40 cm (more details see below for meanings).
The VSD (fundal height) of the uterus corresponds to approximately one week of pregnancy.

By the way, if during an examination the gynecologist notices deviations from the norm in a larger direction, this may mean that the patient is carrying twins or triplets. To a lesser extent - a woman experiences oligohydramnios, a transverse or oblique position of the fetus, or slow development of the baby. The height of the uterine fundus must be measured constantly in order to monitor the dynamics of the results.

The given average statistical dimensions of the height of the uterus may not correspond to reality, because Before pregnancy, each woman's uterus has an individual size.

Height of the fundus of the uterus during pregnancy, table and description

The initial measurement begins at 8-9 weeks, when the uterus changes its shape and becomes like a goose egg. It is from this period that it can be felt, because it extends beyond the pelvis and has a new position - just above the pubis. In addition, it is at this time that the corpus luteum begins to disappear gradually, and the placenta begins to work actively. The baby, despite his small size, is already moving, and blood vessels are beginning to form in his body. At 10-13 weeks, the length of the pregnant woman’s uterus reaches approximately 10-11 cm. The body tries to cleanse itself, due to this toxicosis increases. The height of the uterine fundus at 14-16 weeks already reaches approximately 15 cm. By this period, all organs of the fetus are already formed. The uterus changes its position and is already in the gap - from the pubic part to the navel. At 17-18 weeks, the UMR of the uterus = 19 cm. For this period, the mother has already formed the placenta, and her baby has the immune system, all limbs and the cerebellum. Half term is 20 weeks. The height of the uterine fundus by week corresponds (approximately) to the period of pregnancy of a pregnant woman. The uterus is located 1.5 fingers below the navel. The weight of the fetus at 22-24 weeks is 550-610 grams. His lungs begin their formation, and his muscles and bones begin to develop. The size of the uterus reaches 23 cm. The height of the uterine fundus at week 28 = 28 cm. The VSD is already located above the navel, about 1.5-2 fingers. The beginning of the third trimester is 29-30 weeks. The UMR of the uterus is slightly longer than the term, approximately 31 cm. At this moment, many women complain of high blood pressure and this is not surprising, because The uterus has greatly increased in size. 9 months of pregnancy and 32 weeks, the length of the uterus is 32 centimeters. At week 36, the fundus of the uterus rises again and reaches the line of the costal arches. Pregnancy is approaching its logical onset; you only have to wait 2-3 weeks before meeting your baby. At week 38, the baby’s weight reaches 2200 kg, although in some cases it may not be much more. A woman experiences heartburn due to the fact that the uterus puts pressure on the digestive organs, because its length is 32 cm. Preparation for childbirth is the 40th week. IMD - 34 cm. Such a pregnancy is usually called full-term. The woman needs to prepare for childbirth and for the first meeting with the baby.

Why can the height of the uterine fundus differ from the average from week to week? Several factors can have an impact:

child's weight;
the structure of the expectant mother (height, weight);
fetal position;
a pregnant woman is bearing 2 or more children;
amount of amniotic fluid.

Why is the fundus of the uterus during pregnancy lower than the statistical norm? Factors:

Mom’s figure is curvy and her pelvis is wide;
little amniotic fluid;
the gestational age does not correspond to the actual one;
possible delay in fetal development.

Why is the fundus of the uterus during pregnancy higher than the statistical norm? Factors:

narrow pelvis in a pregnant woman;
multiple pregnancy (a woman carries more than one child);
the position of the fetus is incorrect;
a lot of amniotic fluid;
For the set date, the fetus is larger than normal.

The height of the uterine fundus by week of pregnancy will help you be confident in the successful course of pregnancy and the development of the baby. Be healthy!

The biggest changes that occur in a woman's body during pregnancy are probably related to her uterus. This is where the fertilized egg is normally attached for its further growth and development. To provide the growing fetus with the space necessary for life, the uterus constantly increases in size. As it grows, it rises higher and higher, reaching a maximum at approximately 37 weeks of pregnancy.

The size of the uterus and its height are of great diagnostic importance. They help determine the approximate duration of pregnancy and draw conclusions about its course, as well as assess the degree of development and size of the fetus and identify possible deviations in time. That is why the gynecologist will examine and evaluate the size and height of the uterus at each examination of his ward.

In the early stages, the size of the uterus is determined by finger palpation through the vagina. But from the second trimester, after approximately 13-14 weeks, the uterus extends beyond the border of the pelvic region, rising higher, and it can already be felt through the abdominal wall. Now the gynecologist will measure it every time, or more precisely, the height of the bottom.

Fundal height of the uterus (UFH) is the distance between the upper point of the pubic symphysis and the highest point of the uterus, which is its fundus. It is measured in centimeters in the position of a pregnant woman, lying on her back, using a special pelvis meter or a regular measuring tape. The doctor enters all the indicators into your exchange card each time in order to be able to compare them and track the dynamics.

To evaluate the indicators, use a table that shows the standards for compliance with the gestational age of pregnancy.