Breast cancer happens when normal cells in the breast change and grow out of control. Women sometimes discover they have breast cancer because they find a lump in one of their breasts. Breast cancer is much more common in women than in men. But men can get the disease. Breast cancer sometimes runs in families.
If you feel a lump in your breast, see your doctor or nurse right away. Breast lumps can be caused by conditions that are not cancer. But it is a good idea to have any lumps checked out.
- Is there a test for breast cancer? — Yes. Doctors use a special kind of x-ray called a mammogram to check for breast cancer. If a mammogram finds a spot that looks like it could be cancer, doctors usually follow up with another test called a biopsy. During a biopsy, a doctor takes one or more small samples of tissue from the breast. That way the doctor can look at the cells under a microscope to see if they have cancer.
- What is breast cancer staging? — Cancer staging is a way in which doctors find out how far a cancer has spread. The right treatment for you will depend, in part, on the stage of your cancer.