Chemotherapy can be administered through various methods, including intravenous (IV) infusion, oral medications, injections, or topical applications. IV chemotherapy involves delivering the drugs directly into a vein through a catheter or port. Oral chemotherapy involves taking medication in pill or liquid form. Injections can be given subcutaneously (under the skin), intramuscularly (into a muscle), or intrathecally (into the spinal canal). Topical chemotherapy is applied directly to the skin or affected area. The specific method of administration depends on the type of cancer, treatment goals, and individual patient factors.