Picture of 5 month old fetus

The 5-month-old fetus is approximately 18-25cm long and weighs around 160-300g. At this time, the baby is very comfortable in the uterine cavity. Its head accounts for 1/3 of the body length, the ears are stretched out, the tooth roots begin to form, the hair and eyebrows are complete, and the fingernails also grow out. At this time, the child will do various actions such as sucking his fingers, and his internal organs such as liver, gallbladder, pancreas, spleen, and kidneys are basically fully developed. In general hospitals, the first major fetal abnormality screening is scheduled around May, because if the fetus is too small, it is easy to misdiagnose. If the fetus is too large, serious deformities may be found during the screening and an abortion may be required, which may delay the pregnancy. Therefore, the best time to do an ultrasound to exclude fetal abnormalities is when the fetus is 5 months old, that is, this is the best time to take a four-dimensional color ultrasound.

The test tube embryo in May is about 21-22 weeks of pregnancy. At this time, the test tube embryo weighs about one kilogram, or about 500g. The biparietal diameter of the fetus is about 5-6cm, and the femur length is about 3-4cm. This is the approximate growth and development status. If it is significantly lower than or higher than this standard, the gestational age should be checked first. The gestational age can be checked based on the early pregnancy B-ultrasound, the arm diameter at 11-13 weeks of pregnancy, and the mother's menstrual period, because early or late ovulation often occurs. Generally, test tube embryos develop synchronously before 22 weeks. After checking the gestational age, if the fetus is too large or too small, appropriate intervention should be given.

Development standard of 5-month-old baby: The fetus is about 25cm long and weighs about 340g. Motor nerves and sensory nerves begin to grow, the body is covered with hair, a small amount of hair grows, and fat grows. The first changes in pregnant mothers are the beginning of milk secretion, the feeling of fetal movement, the abdomen becoming more prominent, and the ability to hear fetal heartbeats.

In the fifth month of pregnancy, that is, 16-19 weeks, pregnant women will feel the fetus in the abdomen kicking themselves to show its existence, which is fetal movement. Another message sent by the fetus is the hearing of fetal heart sounds in the abdomen, which is generally 120-160 times/minute. The fetus already has hearing and can hear the sounds, so prenatal education can be carried out at this time.