Nipple discharge

Nipple discharge is a common symptom of breast disease. The incidence of nipple discharge in breast disease is second only to breast lump and breast pain. Can be divided into physiological discharge and pathological discharge. Physiological discharge refers to lactation during pregnancy and lactation, bilateral nipple discharge caused by oral contraceptives or sedatives, and unilateral or bilateral small discharge from postmenopausal women. Pathological discharge refers to the natural discharge from one or more catheters on one or both sides that is not related to pregnancy or breastfeeding under non-physiological conditions, and intermittent and continuous from months to years. Nipple discharge mainly refers to pathological discharge.