Williams Cancer Institute

Is Immunotherapy for Cancer Safe?

immunotherapy for cancer

Your immune system does more than simply fight colds and flu. Throughout your life, your natural defenses seek out and destroy anything that is not recognized as part of the self including all kinds of germs and cancer cells before they have a chance to cause disease. Your immune system manages to destroy most rogue cells before they form a full-fledged tumor, but some of them get by your defenses. If you already have cancer, your immune system will still be working hard to keep your disease in check, but it probably can’t do the job on its own.