Notice a firm, rubbery lump directly under the nipple or areola
Check for swelling or enlargement of one or both breasts
Look for tenderness or pain in the chest area
Compare both sides for uneven breast growth
Feel for a disc-like mass beneath the nipple
Notice nipple sensitivity or soreness
Check whether the tissue feels more like gland tissue than fat
Observe whether the enlargement has developed gradually
Consider whether the change started during puberty, aging, or after starting a new medication
See a doctor for a physical examination
Ask for evaluation if there is nipple discharge, skin changes, or a hard fixed lump