What could a lump in the breast be if not cancer? There are many possible causes of non-cancerous (benign) breast lumps. Two of the most common causes of benign single breast lumps are cysts and fibroadenomas. In addition, several other conditions can present themselves as lumps, such as fat necrosis and sclerosing adenosis.
What kind of breast lump should I worry about? Lumps that feel harder or different from the rest of the breast (or the other breast) or that feel like a change are a concern and should be checked. This type of lump may be a sign of breast cancer or a benign breast condition (such as a cyst or fibroadenoma).
What kind of lumps are normal in breasts? There is a good chance that it’s noncancerous, as most breast lumps are benign. Breast tissue can be lumpy or dense, and that’s normal. It’s a good idea to do monthly breast exams to get to know your breast tissue and what is normal for you.
What percentage of breast lumps are not cancerous? First, don’t panic — 80 to 85 percent of breast lumps are benign, meaning they are noncancerous, especially in women younger than 40.