Most women experience breast changes at some time. Your age, hormone levels and medicines you take may cause lumps, bumps and discharges. If you have a breast lump, pain, discharge or skin irritation, see your health care provider. Minor and serious breast problems have similar symptoms. Although many women fear cancer , most breast problems are not cancer. Some common causes of breast changes are Fibrocystic breast condition - lumpiness, thickening and swelling, often associated with a woman's period Cysts - fluid-filled lumps Fibroadenomas - solid, round, rubbery lumps that move easily when pushed, occurring most in younger women Intraductal papillomas - growths similar to warts near the nipple Blocked or clogged milk ducts Milk production when a woman is not breastfeeding Injury