Thyroid cancer starts in the gland called the thyroid. It occurs when cells in the thyroid gland grow out of control.

Knowing the stage of your cancer is vital when deciding how to treat it. This helpful guide explains the 4 stages of non-Hodgkin lymphoma and what they mean.

Immunotherapy, also called biological therapy, is a treatment that uses your body's own immune system to fight non-Hodgkin lymphoma.

Some people with colorectal cancer or other bowel problems may need a colostomy. This is when surgery is done to change the way food wastes leave the body. Living with a colostomy is a major change. But knowing what to expect and how to deal with it can help you adjust.

For many people, the cause of their leukemia isn't known. But some things do increase your risk.

A risk factor is anything that may increase your chance of having a disease. Learn about risk factors for soft tissue sarcoma.

Targeted therapy uses medicines that target specific parts of certain types of cancer cells. Learn how this treatment is used for stomach cancer.

Learn about the different treatment choices for stomach cancer.

Learn what the different stages of stomach cancer mean.

Learn the more common symptoms of stomach cancer.