This summary discusses primary epithelial breast cancers in women. The breast is rarely affected by other tumors such as lymphomas, sarcomas, or melanomas. Refer to the following PDQ summaries for more information on these cancer types:. Breast cancer also affects men and children and may occur during pregnancy, although it is rare in these populations.
Talk or chat live with a trained cancer information specialist or find support in your own community. Learn about the benefits of good nutrition, regular physical activity, and staying at a healthy weight. Let the Great American Smokeout event be your day to start your journey toward a smoke-free life. Human Papillomavirus can cause 6 types of cancer. But preventing it — and the cancers it causes — is simple.
Breast cancer is cancer that develops from breast tissue. Risk factors for developing breast cancer include being female, obesity , a lack of physical exercise, alcoholism , hormone replacement therapy during menopause , ionizing radiation , an early age at first menstruation , having children late in life or not at all, older age, having a prior history of breast cancer, and a family history of breast cancer. The balance of benefits versus harms of breast cancer screening is controversial.
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