Radiotherapy is the use of radiation to treat disease.
There are many types of radiation that can be used, such as x-rays, gamma rays, and electrons. The type used to treat you depends on what the doctor decides is appropriate.
Many people with cancer will have radiotherapy as part of their treatment. This can be given either as external radiotherapy from outside the body using x-rays, or from within the body as internal radiation.
Radiotherapy works by destroying cancer cells in the treated area. Although normal cells are sometimes damaged by the radiotherapy too, they have a greater ability to repair themselves compared to tumour cells.
Radiotherapy treatment can cure some cancers and can reduce the chance of a cancer coming back after surgery. It may also be used to reduce cancer symptoms.
Southampton's Radiotherapy department is one of the largest radiotherapy treatment centres in the south of England and is one of only 60 dedicated radiotherapy centres in the UK.
It treats patients from Hampshire, Dorset, Berkshire, Wiltshire, the Isle of Wight, West Sussex and the Channel Islands.
The department specialises in treating children, patients with cancers affecting their brain and bone marrow transplants. It also has some of the most technically advanced equipment in the country.