Four months pregnant, the left side of the belly is bigger than the right side

We all know that the correct fetal position is directly related to whether the pregnant woman can choose natural childbirth. Therefore, it is necessary to check the fetus during the pregnancy process. So how should we judge the fetal position in daily life? Generally, it is established during the pregnancy check-up. It is not recommended to check the fetal position by yourself in daily life. So why is the left side of my belly bigger than the right side at four months of pregnancy?

Why is the left side of my belly bigger than the right side when I am four months pregnant?

During pregnancy, the left side of the belly is larger than the right side, which is related to the fetal position of the baby. If you touch the fetal head, you can feel it is larger and harder. It should be that when the left side is only the fetal head and the right side is the body or feet, you will feel that the right side is smaller. This is a normal phenomenon. Don't worry too much. You can check the details through B-ultrasound or four-dimensional examination to determine whether the fetus has any abnormal growth and development.

When to check the fetal position?

Fetal position refers to the position of the fetus in the mother's body. Generally, the normal fetal position is head down, which is convenient for pregnant women to give birth. If pregnant women find that the fetus is in a transverse position during examination, we can adjust it through some knee-chest exercises, but we must know that the fetal position can be checked in a few weeks. In fact, the fetal position can be checked at 30 weeks of pregnancy, because the fetal position is basically formed at this time.

It is a common situation that the fetus is in a transverse position before 30 weeks of pregnancy, and pregnant mothers do not need to worry too much. As the number of weeks of pregnancy increases, most of the fetuses in the transverse position will automatically turn into a normal birth position with the head down. In terms of obstetric treatment, the diagnosis is usually made only when the fetus is still in a transverse position at nine months (36 weeks) of pregnancy.

Doing an ultrasound before 36 weeks of full delivery can determine the amount of amniotic fluid in the pregnant woman, the function of the placenta, and whether the fetus has the umbilical cord around the neck. If there is too little amniotic fluid, calcification of the placenta, or the fetus has the umbilical cord around the neck, it is necessary to consider whether to get pregnant again in combination with clinical medicine. In addition, B-ultrasound can estimate the weight of the fetus based on the fetal head diameter and accurate measurement of the bones, determine the fetal position, predict whether the pregnant woman can give birth naturally, and how to detect fetal intrauterine hypoxia.

The fetal position can be checked after 20 weeks, but it is not fixed at this time. It can be checked by the doctor's palpation or B-ultrasound. After 28 weeks of pregnancy, the fetal position is basically fixed. Therefore, you should go for prenatal check-ups regularly and make an inspection plan based on the situation after the inspection.

How to know the fetal position:

Pregnant women are often recommended to have prenatal checkups during the pregnancy process in order to understand the development and growth of the fetus, or the positive or negative position of the fetus. Therefore, during the pregnancy process, female friends should follow the doctor's advice and have regular prenatal checkups.

1. The operator places both hands on the fundus of the uterus and measures the height of the fundus by hand, and estimates whether the size of the fetus is consistent with the pregnancy cycle based on its height-to-width ratio. Then use the two fingertips to push gently alternately. If the fetal head is in the bottom of the uterus, it will feel hard and round with a pump pressure switch. If it is the fetal buttocks, it will be soft and irregular in shape.

2. The operator places both palms on the upper and lower sides of the abdomen and presses deeply and gently to check. The flat and round part is the tire back, and it is clear whether the tire back is forward, sideways or backward. The deformable uneven part that you touch is the fetus' body, and sometimes you can feel the fetus' body moving.

3. The operator separates the left thumb from the other four fingers, places them on the ischial tuberosity and holds the presenting part tightly to further determine whether the fetus is head or buttocks, and pushes up and down to determine whether it is aligned. If it can be promoted, it is not connected.

4. The operator places his left and right hands on both sides of the presenting part, and presses deeply down along the pelvic canal to further verify whether the diagnosis of the presenting part is appropriate and to determine the level of the presenting part entering the pelvis. When the presenting part is in the head position, one hand can fully enter the pelvic canal, while the other hand is blocked by the protrusion of the head, which is called the head bulge. In occipital presentation, the bulge of the fetal head is the frontal bone, which is in the same direction as the baby's body; in face presentation, the bulge of the fetal head is the occipital bone, which is in the same direction as the fetal back.