What Is Immunotherapy Cancer Treatment and How Does it Work?

Immunotherapy is a type of cancer treatment that uses the patient’s immune system to treat their cancer. By producing proteins, cancer can sometimes avoid detection by the immune system. Because the immune system can’t detect the cancer, it can’t fight it, so that how the immunotherapy treatment helps. It can help boost or restore the immune system, so that it is better able to detect and destroy the cancer. In this video, oncologist Dr. Stephen Lemon explains how immunotherapy works, as well as what types of side effects patients may experience.

Stephen Lemon MD is a medical oncologist, who practices at the Overlake Hospital Cancer Treatment Center in Bellevue, WA.