The seven-month-old fetus already has the appearance of a child, head, body and limbs are complete, only the whole is relatively small, the organs have been formed and are still in the development of immaturity. Seven months of fetal weight has 1100-1400 grams, sitting height of about 26 centimeters, has almost filled the entire uterine space, and has formed its own sleep cycle. The fetus already has the appearance of a child, head and body limbs complete, just overall smaller, like a small old man, the fetus sometimes will put their fingers in the mouth to suck. The whole body is covered by cui hair. The eyelids of the division clearly appear, the eyes can open and close, eyelashes are also completely grown out. At this time the internal organs are also gradually developing, but the development of organs is still immature, so we should avoid the occurrence of preterm labor. The movements and amplitude of the fetus are greater in this month, and sometimes the fetus will move more.