White discharge from the nipples after taking a shower may be caused by higher levels of prolactin, breast enlargement or mastitis. 1. Higher levels of prolactin: Women in the middle and late stages of pregnancy have higher levels of prolactin in their bodies, and under the stimulation of the hormone, they may secrete a small amount of milk, which is manifested as white secretion from the nipples. 2. Breast hyperplasia: endocrine disorders in patients with breast hyperplasia, unstable hormone levels or outside the normal range, may cause nipple secretion of white material, female patients have a higher probability of breast hyperplasia than male patients. 3. Mastitis: When bacteria invade and cause mastitis, it will cause the breast to secrete white material. Mastitis can occur in both male and female patients, and can be treated with antibiotics such as penicillin and cephalosporin under the guidance of a doctor, or by applying erythromycin ointment locally for anti-inflammation and sterilization. At the same time, breast duct dilatation, breast cancer and other diseases may also show nipple white secretion overflow, need to be carefully identified. White discharge from the nipples after taking a shower may also be caused by other reasons, and it is recommended that the patient consult a doctor in time to find out the cause of the problem, and under the guidance of the doctor to carry out the appropriate treatment.