Fetal normal development, pregnant women need to pay attention to many things, because there are many factors affecting fetal intelligence, including genetic diseases, environmental pollution, etc. Fetal development is very important. Let's share the normal development of the fetus.
Normal fetal development 1 How to judge normal fetal development?
A fetus in the fourth week of pregnancy cannot be called a fetus in medicine. After the fertilized egg is formed, it continues to divide and proliferate. The trophoblast began to secrete human chorionic gonadotropin (HCG) on the sixth day after fertilization, and it could be detected in the serum and urine of pregnant women on the seventh day after fertilization.
HCG can stimulate the formation of progesterone and protect the embryo from rejection by the maternal immune system as a foreign body. The level of HCG increased with the increase of pregnancy days.
Progesterone level is also one of the indicators of fetal health judgment in the first trimester. After fertilization, the plasma progesterone level increases steadily with the increase of pregnancy time, but in the fourth week of pregnancy, progesterone mainly comes from the secretion of ovarian corpus luteum. Progesterone is beneficial to embryo implantation, reducing maternal rejection, and can cause early abortion when lacking.
The mother's reaction during pregnancy is also an important hint of fetal health judgment. Vaginal bleeding and lower abdominal pain are both manifestations of abnormal pregnancy, which should be paid attention to. Next, let's look at the four things that the fetus is most afraid of.
1, afraid of noise. When the fetus is 6 months old, it can already hear the outside world. Studies have shown that noise will seriously affect human eugenics and lead to the increase of abnormal fetuses.
Noise can disturb the endocrine gland function of pregnant mothers, make the pituitary gland secrete too much oxytocin, cause the uterus to contract strongly, and lead to abortion and premature delivery. Therefore, pregnant mothers should try not to stay in a noisy environment, let alone listen to deafening stimulating music.
I'm worried that my mother will be unhappy. The mood of pregnant women is closely related to the development of the fetus. If pregnant women are often angry, afraid, painful, afraid, worried or severely stimulated, it will have a negative impact on the fetal hypothalamus and increase the chance of suffering from mental illness in the future.
Children born to pregnant women with long-term anxiety are often restless, prone to crying, unwilling to sleep, and it is difficult to adapt to the surrounding environment when they grow up. Therefore, pregnant women should try to keep a happy mood, learn to control unhealthy emotions, and their families should pay more attention to her.
Mother is ill. If pregnant women suffer from pregnancy-induced hypertension, pregnancy-induced diabetes, etc. , may cause fetal abnormalities, or even fetal suspension. Therefore, pregnant women should get rid of bad habits such as staying up late, not exercising and overworking. Especially pregnant women are prone to periodontitis, which is likely to affect the health of the fetus. Therefore, brushing your teeth during pregnancy is always bleeding, so you should pay attention to it and treat it seriously.
4, afraid of strong impact. The fetus is protected by amniotic sac and amniotic fluid in the uterus, and generally a slight impact will not affect the fetus. However, the strong impact will easily lead to abortion, premature delivery, water breakthrough, placental abruption, uterine rupture and other dangers. Therefore, it is best not to ride a bike during pregnancy, walk without high heels and wear non-slip shoes, and it is best not to drive in the third trimester.
How to judge intrauterine growth retardation
There are two detection methods that can help to judge whether the baby has intrauterine growth retardation and track the baby's growth in the uterus.
1。 Ultrasonic examination.
During pregnancy, it is usually checked once every three or four weeks to ensure the normal growth of the fetus. Doctors can understand the internal organs of the fetus through ultrasonic examination and measure the growth and development indicators. There is a special ultrasound examination called fetal biophysical score, and doctors can further observe the breathing and musculoskeletal movements of the fetus.
2。 No-load test
This test can reflect the responsiveness of fetal heartbeat. A healthy fetus will have a faster heartbeat when it is active. No-load examination usually takes 20 to 30 minutes, but if the fetus is asleep, the examination time will be longer.
Sometimes, the doctor will also observe the fetal heartbeat when your uterus contracts (uterine contraction load test). If there are any abnormalities in these test results, the doctor will conduct further tests. If your pregnancy is abnormal, the doctor may promote labor (induced labor) in advance.
The fetus is developing normally. The whole process of fetal development
Early stage: the organ system of the fetus begins to work.
Two months later, the shape of the embryo has initially shown the appearance of human beings. In the third month, the organ system of the fetus began to work, and it can breathe and excrete. The external genitalia has begun to develop, the mouth can be opened and closed and swallowed, and the limbs can flow.
He can respond to external stimuli. If he touches his eyelids, he will squint. Touch his palm and his fingers can bend; Touch his lips and he will smack his lips; When you touch your heel, your toes will spread out.
Mid-term: I have initially acquired the ability to live.
In this era, the fetal skeletal system is further developed and the placenta is well formed; The activity of fetal limbs is strengthened, and the mother can feel fetal movement and muscle development. Hair grows on the head, eyebrows and eyelashes also grow out, and the fetal length like fluff covers the whole body. If you put your ear close to your mother's abdomen, you can hear the heartbeat of the fetus. All organs are also fully developed and have initially possessed the power of life.
Late stage: fetal maturity.
At this time, the fetus grows very fast and almost fills the whole uterus; Because the activity space becomes smaller, the tire flow contracts; The fetus gradually grows fat under the skin, ready to adapt to the temperature changes outside the uterus.
I propose
As a expectant mother, it is very necessary to know the monthly development of the fetus above. Only by understanding the whole process of fetal development can we take good care of the fetus. In fact, this is equivalent to caring about every step of fetal development, which is a manifestation of love.
Second, the calculation method of fetal development
The reason why the fetus grows slowly in the uterus is that there are many potential fetal distress factors in the uterus, which makes the growth and development of the fetus slower than that of the normal fetus, so the feeding and nursing of the fetus after delivery is also more complicated than normal. If we pay attention to the influence of related factors during pregnancy, we can greatly reduce the occurrence of intrauterine growth retardation.
So, fetal development can also be calculated? Yes, and most pregnant mothers are worried about whether the fetus will grow slowly. Next, let's take a look at the detailed calculation method: the pregnant woman herself or her husband measures the base height, that is, the length from the upper edge of pubic symphysis to the uterine base, and then calculates the development index according to the formula.
The formula is: fundus height (cm) -3× (month 10 L).
If the fetal development index is less than -3, it means that the fetus is stunted. For example, the measured fundus height is 29.5 cm, and the pregnancy is 40 weeks (that is, 10 months). Substituting this formula, the fetal development index is 29.5-3× (10+1) =-3.5. -3.5 is less than 3, indicating that the pregnant woman's fetus has intrauterine growth retardation.
In addition, "fetal movement count" can also be used for discrimination. After 34 weeks of pregnancy, every pregnant woman should carefully carry out "fetal movement count", that is, the fetal movement count is 1 hour every morning, middle and late. Where fetal movement is 3-20 times within 1 hour, it is normal; If the count is less than 3 times or more than 20 times, it means that the fetus is in a state of distress and should be dealt with immediately.
I suggest
Some pregnant women who are a few months old may not be able to measure themselves. Expectant mothers can ask their husbands or relatives and friends around them to help them measure. But I want to remind you that the consequences of this method are for reference only. Suppose you feel unwell, you should go to the hospital to check and verify.
Normal fetal development 3 fetal development criteria
The fetal development standard that every pregnant woman must know. The fetus continues to develop and grow with the advancement of the pregnancy cycle. Pregnant women need to know the standard of fetal development and judge whether the fetus is developing normally according to the data such as fetal head circumference and biparietal diameter. In the event of fetal growth retardation or fetal arrest, you must seek medical advice as soon as possible and make remedies under the guidance of a doctor.
Fetal intrauterine growth retardation
The development of the fetus in the uterus has a certain process. It is easy to have dystocia if you develop too fast, and it is not good to develop too slowly. What about intrauterine growth retardation?
Some pregnant women still have bad habits such as smoking, drinking and staying up late during pregnancy, which may also cause intrauterine growth retardation. Therefore, pregnant women who have these habits had better get rid of them.
At the 28th week of pregnancy, the height of uterus should be measured once a week in time. If it is found to be lower than the normal value 10% twice in a row, the symptoms of intrauterine growth retardation may have appeared. If the expectant mother does not triple her weight, intrauterine growth retardation may also occur. Pregnant women should pay more attention to rest, improve their living habits, avoid overwork and physical exercise, and try to take a left lateral position when resting. Family members should pay more attention to supplementing nutrition for pregnant women, especially foods rich in protein and fat, in order to enhance the body fat content of pregnant women.
lanugo hair
Fetal hair is brought when the baby is born, like hair, but not hair, so where is the fetal hair?
Fetal hair usually disappears before or after birth. However, in some cases, it may exist in adults, especially those with eating disorders.
Usually, the fetal hair on the child's head will fall off once in the mother's womb when she is pregnant for seven or eight months, and will gradually fall off for the second time soon after birth until all the fetal hair falls off. Therefore, except for babies with special diseases or premature delivery, fetal hair can only be seen on the body and face of newborn babies. After birth, the hair on the head will soon change from fetal hair to colorful fur.
Fetal leakage
Many people don't know about fetal leakage, but most pregnant women are familiar with it. So what does fetal leakage mean?
Fetal leakage is actually a term for threatened abortion. From the perspective of traditional Chinese medicine, it is mainly caused by blood heat, deficiency of qi and blood and blood stasis. From the perspective of western medicine, there are four main reasons for abortion: embryo, mother, immune function and environmental factors.
Fetal leakage is mostly caused by immoral sexual life after pregnancy and insufficient liver and kidney. Jingxue is weak and can't raise a fetus; Or fatigue and qi deficiency, unable to take blood; Or the food is spicy and irritating, or the feelings are not smooth and angry, leading to blood-heat rash, or excessive physical activity.
However, it should be pointed out that there are very few women who still menstruate on a monthly basis after pregnancy, but the amount of menstruation is very small and not morbid. The ancient literature of traditional Chinese medicine called Jing Jing, which should be distinguished from fetal leakage.