While
breast cancer risk factors are not specific breast cancer causes, they can increase the likelihood that a woman will get breast cancer.
Risk factors for breast cancer include the following:
- Older age
- Menstruating at an early age
- Older age at first birth or never having given birth
- A personal history of breast cancer or benign (non-cancerous) breast disease
- A mother or sister with breast cancer
- Treatment with radiation therapy to the breast/chest
- Breast tissue that is dense on a mammogram
- Taking hormones such as estrogen and progesterone
- Excessive drinking of alcoholic beverages
- Being white.
What Else Is Known About Breast Cancer Causes?
While all the breast cancer causes are not known, there is a lot that is known. Some things that are known about breast cancer causes include the following:
- Breast cancer is not caused by stress or by an injury to the breast.
- You cannot "catch" breast cancer from other women who have the disease. It is not contagious.
- You should not feel guilty. You haven't done anything wrong in your life that caused breast cancer.
- Most women who develop breast cancer do not have any known risk factors or a history of the disease in their families.