Birth weight of normal term infants?

summary

After giving birth, the first thing for a pregnant woman to wake up is to ask how her child is. And the doctor will also tell the expectant parents about the weight of the fetus after the pregnant woman wakes up, so that the expectant parents have a spectrum in mind. Then someone asked Xiaobian, how much is the full-term fetal weight normal? In this way, couples who have not yet given birth are psychologically prepared to increase or decrease the weight of the fetus. Birth weight of normal term infants? Let's talk about it

Birth weight of normal term infants?

The birth weight of normal full-term newborns is between 2500 g and 4000 g, the average weight of normal full-term newborns is 3300 g, and the average height of normal full-term newborns is 50 cm. Over 4000g is macrosomia, less than 2500g is low birth weight. Newborns with more than 4000g and less than 2500g may have high risk factors.

Normal term infants refer to those whose gestational age is from 37 weeks to less than 42 weeks (259-293 days). The birth weight of term infants is between 2500-4000 grams, with an average of 3200 grams. His height is above 46 cm, with an average of about 50 cm. External features: the hair is clearly divided, the cartilage of the ear shell is well developed, the breast can feel the nodules, the nails are long to or longer than the fingertips, the plantar texture is more, the scrotum of the baby boy has a lot of wrinkles, and the testicles fall into the scrotum. The baby girl's labia major has covered the labia minor.

Macrosomia with birth weight over 4000 g, some of which are normal and healthy children, may be related to heredity and excessive intake during pregnancy. There are some high-risk factors, such as maternal diabetes mellitus during pregnancy, fetal RH hemolytic disease, congenital heart disease (macrovascular dislocation), etc. Macrosomia is prone to asphyxia and intracranial hemorrhage in the process of delivery. Because the fetus is too large, it is easy to have dystocia and birth injury. Macrosomia whose mother has diabetes mellitus is prone to hypoglycemia, which affects the development of brain, and also leads to polycythemia, high blood viscosity, intravascular coagulation and venous embolism.

matters needing attention

Mothers should pay attention to nutrition during pregnancy, avoid contact with harmful poisons and reduce diseases. Timely prenatal examination, active prevention and treatment of pregnancy diseases, regular B-ultrasound detection of fetal growth and development, early diagnosis, early intervention.