A breast lump is a growth that forms within the breast. Different types of breast lumps can vary in the way they look and feel.

You might notice:

You also might see these changes along with a lump:

A breast lump can be a sign of breast cancer. That's why you should get it checked by your health care provider as soon as you can. It's even more important to get a breast lump checked after menopause. The upside is that most breast lumps are benign. That means they are not caused by cancer.