A breast lump is a growth of tissue that develops within your breast. It may be described as a mass, growth, swelling, thickness or fullness.
A breast lump can vary in the way it looks and feels. If you have a breast lump, you may notice:
Sometimes, a breast lump is a sign of breast cancer. That's why you should seek prompt medical evaluation. Fortunately, however, most breast lumps result from noncancerous (benign) conditions.
- Breast cancer
- Breast cysts
- Fibrocystic breasts
- Hamartoma, a noncancerous tumor in the breast
- Injury or trauma to the breast
- Intraductal papilloma, a noncancerous, wart-like growth in a milk duct
- Milk cyst (galactocele)
Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.