The fluid that can be sucked out of the breast is called nipple discharge. Nipple overflow should be analyzed according to the specific situation, if it is physiological nipple overflow, it is a normal phenomenon, such as breastfeeding pregnant women; as well as pathological nipple overflow, it is an abnormal phenomenon. 1. Physiologic nipple discharge: physiologic is usually during pregnancy or breastfeeding, no special treatment is needed, you can apply hot compresses to the breasts and keep the nipples clean. 2. Pathological nipple discharge: Pathological discharge is a natural discharge phenomenon not related to pregnancy or breastfeeding, and common diseases include breast hyperplasia and other diseases. In cystic hyperplasia of the breast, the color of nipple discharge is colorless, yellowish, white; in papillary tumor, the color of nipple discharge is yellowish; in malignant tumor of the breast, the color of nipple discharge is bright red, and so on. Nipple overflow, depending on what stage of the symptoms, first of all, we should pay attention to the color of the liquid, whether there are abnormal symptoms, if it is not accompanied by abnormal symptoms, it is usually a normal physiological phenomenon, we should pay attention to the observation of the abnormal performance of the breasts, and symptoms should be treated in a timely manner.