It is not a cause of breast cancer but rather one of the manifestations of breast cancer
. Examples of benign condition that can cause nipple
discharge include fibrocystic disease, intraductal papilloma, mastitis, and galactocele. On the other hand, breast carcinoma, fibrosarcoma, and Paget’s disease of the nipple are examples of malignant condition that can cause nipple discharge.
Hope this helps.