Radiation therapy uses a controlled dose of radiation to kill cancer cells or damage them so they cannot grow, multiply or spread. The radiation is usually in the form of focused x-ray beams, also known as photons. It can also be in other forms such as electron beams, proton beams or gamma rays from radioactive sources.
It is a localised treatment, which means it generally affects only the part of the body where the radiation is targeted.
Learn more about:
- Common questions about radiation therapy
- Your health care team
- External beam radiation therapy
- Other types of internal radiation
- Managing radiation therapy side effects
- After radiation therapy
- Questions for your doctor
- Watch video on radiation therapy
Listen to a podcast on Making Treatment Decisions
Radiation therapy for children
This information is for adults having radiation therapy, although much of it will also be relevant for children. Talk to your treatment team for specific information about radiation therapy for children.
For age-appropriate support and resources, you might also want to contact:
Video: What is radiation therapy?
If you have cancer, radiation therapy (also known as radiotherapy) may play a big role in your treatment plan. Learn more in this short video.