Intraductal papillomas are benign lesions that are cured by complete surgical excision in most patients. Ductal papillomas can be categorized into central and peripheral types. The peripheral type may not be completely removed by surgery due to its location and may recur. 1. Central type breast ductal papilloma: the central type is more common, which often occurs in the large ducts of the breast, and clinically, it is usually single, with bloody overflow at the nipple, which develops more slowly and has a lower cancer rate. 2. Peripheral breast duct papilloma: Peripheral papilloma is less common and often occurs in the terminal duct of the breast, with hidden symptoms, late detection, and the probability of cancerous transformation. Once nipple discharge and breast lumps appear, it is recommended to go to the hospital as soon as possible, to clarify the cause of the disease, and according to the cause of targeted treatment. It is also necessary to pay attention to breast hygiene in daily life and try to choose loose and breathable underwear.