After pregnancy, the level of estrogen in the body increases, there will be an increase in secretion, which is milky white and has no special odor, only a slight fishy smell. Yellowish leucorrhea with fishy smell after pregnancy indicates gynecological inflammation, routine leucorrhea examination can be carried out and treated in time. Other changes will occur in the body in early pregnancy, such as breast enlargement, nausea, vomiting and anorexia, which are all normal early pregnancy reactions. Increased discharge after pregnancy should pay attention to vulva cleanliness, rinse vulva with warm water every day to prevent gynecological diseases, unstable fetal development in early pregnancy, keep observing body changes, and timely ultrasound examination should be performed when uncomfortable symptoms appear. Strengthen nutrition, eat more nuts, dairy products, meat, and need to supplement folic acid to help fetal development and reduce the rate of malformation.