What does a non-tender breast mass with nipple discharge typically indicate?

A non-tender breast mass accompanied by nipple discharge often suggests the presence of an intraductal papilloma. This condition is characterized by a benign growth within the ducts of the breast, which can lead to the obstruction of milk ducts and subsequent discharge, usually serous or bloody. The absence of tenderness aligns with the typical presentation of an intraductal papilloma, making this choice noteworthy.

Fibrocystic change generally involves multiple cysts and fibroadenomas, leading to breast pain or discomfort, and is less likely to present as a singular non-tender mass with discharge. Breast cancer is a more complex diagnosis and is often accompanied by additional symptoms, such as an increase in the size of the mass, changes in the skin, or lymphadenopathy, which do not align as clearly with a non-tender nature. A galactocele is a milk-filled cyst that occurs commonly in lactating women and would typically not present with a non-tender mass and discharge in non-lactating individuals. Thus, the characteristics associated with an intraductal papilloma make it the most fitting answer in this context.