Which of the following is not a common medical treatment for cancer?

Physical therapy is not typically classified as a direct medical treatment for cancer. Instead, it serves a supportive role in the cancer treatment process. While surgery, chemotherapy, and radiation are primary modalities used to treat cancer directly—aiming to remove tumors, kill cancer cells, or shrink malignant growths—physical therapy focuses on improving the quality of life for patients, helping them regain strength, mobility, and function during and after cancer treatment.

Physical therapy is often used to address side effects and complications arising from cancer itself or from other treatments, such as fatigue, pain, and mobility issues, but it does not target the cancer cells or tumors directly. Therefore, while it is an important aspect of comprehensive cancer care, it is not considered a standard medical treatment for the disease itself.