Cancer therapy is the use of various treatments to kill or slow the growth of cancer cells in the body. These treatments can include surgery, radiation therapy, chemotherapy, targeted therapy, immunotherapy, hormone therapy, and stem cell transplant. The goal of cancer therapy is to eliminate cancer cells, prevent the spread of cancer, and improve the quality of life for cancer patients. Researchers are constantly working to develop new and more effective treatments for cancer, with the ultimate goal of finding a cure for this devastating disease.