Breast overflow needs to confirm the cause first, physiological reasons do not need to worry, if it is pathological reasons need timely treatment. 1. Physiological reasons: the breast ducts in the breast will secrete some secretions during the normal physiological period, which will be discharged out of the body through the nipple, which belongs to the normal physiological phenomenon, such as pregnancy, breastfeeding, weaning, and other special periods of time, there will be the phenomenon of breast overflow, which does not require special treatment. 2. Pathological causes: nipple discharge is a common symptom of breast disease, breast hyperplasia, breast duct expansion and other causes can cause nipple discharge, it is recommended that pathological causes, you need to consult a doctor to diagnose the cause of the disease in time, and actively cooperate with the doctor to carry out surgical or drug treatment. In addition, there are other causes of breast discharge such as breast cancer, mastitis, etc. It is recommended to wear suitable and comfortable underwear, supplement the body’s nutrition, enhance immunity and prevent breast diseases.