Radiation therapy also can cause hair loss

Radiation therapy also attacks quickly growing cells in your body, but unlike chemotherapy, it affects only the specific area where treatment is concentrated. If you have radiation to your head, you'll likely lose the hair on your head.

Your hair usually begins growing back after your treatments end. But whether it grows back to its original thickness and fullness depends on your treatment. Different types of radiation and different doses will have different effects on your hair. Higher doses of radiation can cause permanent hair loss. Talk to your doctor about what dose you'll be receiving so that you'll know what to expect.

Radiation therapy also affects your skin. The treatment area is likely to be red and may look sunburned or tanned. If your radiation treatment is to your head, it's a good idea to cover your head with a protective hat or scarf because your skin will be sensitive to cold and sunlight. Wigs and other hairpieces might irritate your scalp.