title: Bloody nipple discharge.
abstract: Bloody nipple discharge is a complaint that worries both the patient and the physician. Unlike other types of nipple discharge, it signals intrinsic breast disease. A benign etiology is the rule rather than the exception, but this symptom warrants careful evaluation. If there is no palpable mass or mammographic abnormality, bloody discharge from a single duct in a nonpregnant young woman is usually due to a benign intraductal papilloma.
mesh_terms: D000328:Adult; D001941:Breast Diseases / Q000175:diagnosis*; D001943:Breast Neoplasms / Q000175:diagnosis*; D005122:Exudates and Transudates / Q000378:metabolism*; D005260:Female; D005687:Galactorrhea / Q000175:diagnosis; D006801:Humans; D009558:Nipples / Q000378:metabolism; D010212:Papilloma / Q000175:diagnosis*; D011247:Pregnancy; D012306:Risk