A mild traumatic brain injury, or concussion, changes the way your brain works for a short time. Learn more about this condition.

A traumatic brain injury (TBI) is a sudden jolt to your head that changes the way your brain works.

Prostate cancer cells need androgens to grow. Reducing the amount of androgens in the body or blocking prostate cancer cells from using them can help treat prostate cancer. This therapy doesn't cure the cancer, but it can help control it. It may be used alone. Or it may be used with radiation therapy to help make this treatment more effective.

Estrogen is one of the female hormones. Sometimes breast cancer cells use estrogen to grow and multiply. Hormone therapy is a way to reduce the action of estrogen on these cells.

Anemia is when the number of healthy red blood cells in the body drop below normal. Cancer and cancer treatment often cause anemia. Learn about anemia and how it's treated.

Some types of cancer treatment damage stem cells. A peripheral blood stem cell transplant replenishes these stem cells. Learn what to expect.

Brachytherapy is a treatment for cancer. Implants are used that attack the tumor from inside the body. This treatment can help slow the growth of a tumor. It can help ease pain and other symptoms caused by the tumor. Learn more about this treatment and what to expect.

Targeted therapy uses medicines that are aimed at the cancer cell specifically. Because of this, targeted therapy may cause fewer side effects. There are many kinds of targeted therapy medicines. They work differently on different types of cancers.

If you've been injured and have a scar, scar revision surgery may help improve the look of the scar or make it less visible.

Breast reduction surgery is also called reduction mammoplasty. Fat, tissue, and skin are removed from the breasts to make them smaller. The size of the areola (dark skin around the nipple) may be reduced. And the nipple may be moved higher on the breast. Read on to learn more about the procedure.