Question: How long after radiation does your hair fall out?

Most people find that their hair starts to fall out in the area where they are getting radiation therapy, about 2 to 3 weeks after their first radiation therapy session.

Is hair loss from radiation permanent?

If you have hair in the area being treated, you may lose some or all of it during or just after radiation therapy. The hair will usually grow back a few months after treatment has finished, but sometimes hair loss is permanent.

Can radiation cause hair loss years later?

Only people who get radiation to the scalp or the brain may have hair loss. Others won’t. If it does happen, it’s usually sudden and comes out in clumps. In most cases, your hair will grow back after therapy stops, but it may be thinner or have a different texture.

How long after radiation do you start to feel better?

For most people, the cancer experience doesn’t end on the last day of radiation therapy. Radiation therapy usually does not have an immediate effect, and it could take days, weeks or months to see any change in the cancer. The cancer cells may then keep dying for weeks or months after the end of treatment.

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Why does radiation make your hair fall out?

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.

Will my hair grow back after whole brain radiation?

Two to 3 weeks after your radiation therapy begins, you’ll probably lose some of the hair on your scalp. Ask your doctor or nurse what to expect. Your hair will usually grow back 3 to 6 months after your treatment is completed. The color and texture of your hair may be different after your radiation therapy.

What is the most common acute side effect of radiation treatment?

Early and late effects of radiation therapy

The most common early side effects are fatigue (feeling tired) and skin changes. Other early side effects usually are related to the area being treated, such as hair loss and mouth problems when radiation treatment is given to this area.

Does radiation cause brain damage?

Loss of some brain function can occur if large areas of the brain receive radiation. There may also be other symptoms that develop as a result of damage to healthy brain tissue. These symptoms depend on what the treated area of the brain controls and how much radiation was given.

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