Pregnant women have a lot to pay attention to in life, so as not to cause adverse effects on the baby. One of them is sleeping on the left side. Why should we sleep on the left side? Here is the reason why we should sleep on the left side during pregnancy brought by Xiaobian. Welcome to read! When pregnant women arrive at the middle and late stage of pregnancy, it's better to lie on the side. Supine is not good for adults and fetus. Many people only know that after pregnancy to pay attention to rest, especially to lunch break, but do not know late pregnancy also pay attention to sleeping posture.
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Why sleep on the left side during pregnancy: to ensure placental blood volume
In the middle and late pregnancy, it's better for pregnant women to lie on their side. Supine is not good for adults and fetus. Many people only know that after pregnancy to pay attention to rest, especially to lunch break, but do not know late pregnancy also pay attention to sleeping posture. Some pregnant women at work take a lunch break on the sofa and folding bed at noon. Because of the limitation of conditions, they can only take a supine position, which is harmful to the baby and pregnant women in the late pregnancy. The result of lunch break is just the opposite.
In the early stage of pregnancy, the uterus enlargement is not obvious, and the position has little effect on the fetus. After 5 months of pregnancy, the weight and volume of the uterus increased significantly, and the adjacent relationship between the uterus and the surrounding organs and blood vessels also changed, especially after 7 months of pregnancy, the weight of the pregnant woman and the fetus increased. The position during this period can directly affect the blood flow of the uterus, especially the supine position will have a series of adverse effects on the pregnant woman and the fetus. When lying on the back, the enlarged uterus compresses the abdominal artery, which reduces the pressure of the uterine artery and affects the blood supply of the uterus, so as to reduce the blood supply of the placenta. The insufficient uterine blood flow makes the ischemic placenta release a large amount of renin. Renin enters the maternal blood circulation, which can lead to increased arterial pressure, which is easy to cause and aggravate pregnancy poisoning.
The best sleeping position for pregnant women is the left lateral position, especially in late pregnancy. The left lateral position can reduce the compression of pregnancy uterus on aorta and iliac artery, maintain normal tension, ensure the blood perfusion of placenta, and make pregnant women less prone to lower extremity edema, varicose veins and fetal dysplasia. If pregnant women have difficulty in lying on their left side for a long time, when lying flat, they can put blankets, pillows or quilts on their right buttocks to tilt their pelvis to the left, which can also play the role of lying on their left side.
Why sleep on the left side during pregnancy
1. The left lateral position can reduce the pressure of the enlarged uterus on the aorta of pregnant women, maintain the blood flow of the normal uterine artery, ensure the blood supply of the placenta, and provide nutrients for the growth and development of the fetus
2. It can reduce the pressure of pregnancy uterus on inferior vena cava and increase the blood flow back to the heart. The increase of heart blood volume can increase the blood flow of kidney, improve the blood supply of brain tissue, and help to avoid and reduce the occurrence of pregnancy induced hypertension syndrome.
3. In the third trimester of pregnancy, the uterus rotates to the right, and the left lateral position can improve the right rotation of the uterus, Therefore, it can reduce the uterine vascular tension, increase the placental blood flow, improve the oxygen supply of the fetus in the uterus, which is conducive to the growth and development of the fetus. It is of great significance to reduce the birth of low birth weight infants and reduce the perinatal mortality, especially in the case of fetal growth retardation, taking the left side sleep can make the treatment achieve better results!
The lying position of pregnant women has influence on the development of pregnant women and fetus. After entering the second trimester of pregnancy, the uterus rises slowly from the pelvic cavity to the abdomen. After that, when lying on the back, the pregnant uterus can compress the abdominal aorta and inferior vena cava, affecting the blood circulation; the later the pregnancy, the larger the uterus, abdominal viscera, especially the intestine move upward, leading to the rise of diaphragm and the reduction of thoracic volume. So some pregnant women will feel chest tightness, shortness of breath. Lateral position may relieve the compression of abdominal aorta and inferior vena cava and the influence on diaphragm, so as to relieve the symptoms.
As the sigmoid colon is relatively fixed, the uterus tilts to the right in early pregnancy. When lying on the right side, the uterus, which is already on the right side, can press more to the right side with gravity, pressing the liver of the right upper abdomen, so it still feels uncomfortable. When lying on the left side, the uterus moves to the left with gravity, which corrects the right position of the uterus and makes it comfortable. In addition, in supine position, because the uterus compresses the abdominal aorta and inferior vena cava, the blood flow of the uterus is affected, and the blood circulation supply is reduced, which is not conducive to the fetal intake of nutrition and oxygen from the mother and the excretion of metabolites, thus affecting the development of the fetus.
Therefore, for the pregnant women in the middle and late pregnancy, it is recommended to choose the left lateral position. Because the left lateral position can avoid the adverse situation of uterine compression of inferior vena cava and abdominal aorta, increase the blood flow of uterus and placenta, as well as the supply of nutrients and oxygen, which is conducive to maintaining the normal development of the fetus, and can make the uterus rotating to the right move back to the left, which is conducive to relieving the compression of the uterus on the right ureter and correcting the abnormal fetal position; It can also reduce edema and varicose veins of lower limbs and prevent the occurrence of hemorrhoids.