At 7 months of pregnancy, the fetus is about 36-38 cm long and weighs about 1 kg. He has many wrinkles and looks like an old man. The whole body is covered with vellus hair. The eyelids are clearly demarcated and the eyes can be opened. If you look closely at the external genitalia, you will find that the boy\’s testicles have not descended, but the girl\’s labia and clitoris are obviously protruding. He does not have enough strength to feed, and his trachea and lungs are not fully developed. If you give birth prematurely during this period, it will be difficult to survive even if your breathing is weak and you cry. However, with the development of medicine, the possibility of survival of such premature babies is increasing.