The occasional crying of a pregnant woman will not do anything to the fetus in the stomach, but the prolonged and frequent crying of a pregnant woman may affect the normal development of the fetus, and even trigger intrauterine oxygen deficiency. After pregnancy, the overall state of women will change, may be more sentimental, love to cry, occasionally cry will not affect the normal development of the fetus in the womb, but also to release the dissatisfaction of the emotions, mood regulation. Prolonged and frequent crying after pregnancy may affect the growth and development of the fetus, the early stages of pregnancy may increase the chances of fetal miscarriage, the middle and late stages of pregnancy is an important stage of fetal neurological development, pregnant women are too excited to cry, it will affect the normal blood and oxygen supply to the placenta, insufficient blood supply will cause fetal hypoxia in the uterus. Therefore, pregnant women should pay attention to regulate their mood after pregnancy, family members should also give support and comfort, try to avoid overly emotional.