A benign breast condition refers to a lump, cyst, or nipple discharge (fluid) of the female or male breast that is not cancerous. There are numerous benign breast conditions. For women, the most common ones are:Fibrocystic breast changes. Fibrosis feels like scar tissue and can be rubbery and firm. Cysts are sacs filled with fluid. They may enlarge and feel tender right before your period.Fibroadenomas. These are the most common breast lumps in younger women and are usually very small.Mastitis. Your breast can become enlarged because of infection. This can happen to anyone but usually happens when breastfeeding.Fat necrosis. These lumps form when areas of fatty breast tissue are damaged.Calcification. Small spots of calcium salts can show up anywhere in breast tissue. Usually, you cant feel them and they are not painful.Nipple discharge. Your nipples may leak fluid for a variety of reasons.