For patients, survivors & caregivers
Plain-language guides to hundreds of cancer types and treatments, and a directory of 379,000+ oncologists, treatment centers and support services across the U.S.
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October 20, 2026
Lymphedema is swelling caused by a buildup of lymph fluid. After breast cancer, it most often affects the arm or hand on the side that was treated, though it can also affect the breast, chest or back. It can start soon after treatment or…
October 19, 2026
Some breast cancer risk factors can't be changed: being a woman, getting older, your family history, your genes. But others are about how we live, and they add up. Small, steady changes can lower your risk, and many of them help your heart…
October 18, 2026
Most people think of breast cancer as a disease of older women, and mostly it is. The median age at diagnosis in the U.S. is 63. But according to the American Cancer Society, about 1 in 10 breast cancers is found in a woman younger than…