Radiotherapy treats cancer by using high-energy x-rays to destroy cancer cells.
You might have radiotherapy before or after surgery, to treat a secondary cancer, or to shrink or slow the growth of an advanced sarcoma.
Find out what happens at your planning appointment for external radiotherapy.
Find out what happens when you have external radiotherapy for soft tissue sarcoma.
Radiotherapy can cause general side effects as well as more specific ones. Specific side effects depend on where your soft tissue sarcoma is in your body.