Hair Loss

Medically reviewed by C.H. Weaver M.D. Medical Editor 8/2018

Why does chemotherapy cause hair loss

Chemotherapy damages rapidly dividing cells, such as cancer cells. Some healthy cells also divide rapidly, such as hair follicles. Chemotherapy damages these cells, leading to hair loss, also called alopecia.

What will happen

Hair loss will typically begin two or three weeks after your first treatment. In addition to hair on your head, you may lose eyebrows, eyelashes, facial hair, pubic hair, underarm hair and leg hair. The amount of hair that you lose will depend on the type of chemotherapy drug you are taking. Hair typically begins to grow back approximately 2-3 weeks after treatment is finished. The hair may grow back differently than it was before treatment. For example color or texture (curly or straight) may be different.

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What can be done to cope with hair loss

Importantly, you should remember that hair loss associated with chemotherapy is temporary and the hair WILL grow back. In the meantime, here are a few tips to help you cope with the loss:

  • You may wish to cut your hair before it starts falling out. The experience of losing the hair is sometimes worse than dealing with it once it’s gone. If you expect to lose all or a lot of your hair, cutting it first may be easier to cope with.
  • Plan ahead; shop for a wig before your hair is gone, especially if you wish to match your natural color. Or, take this opportunity to try something different.
  • Try hats or head scarves; these are good alternatives or a compliment to a wig.
  • Remember to cover your head or use sunscreen on your scalp. Skin that has been covered with hair may be particularly sensitive to UV rays of the sun.
  • Ask your insurance company if they cover the cost of the wig.
  • Treat your new hair gently once it grows back. Avoid chemicals, bleach, peroxide or colors.
  • Get involved in a “Look Good… Feel Better” program, a community-based, free, national service that teaches female cancer patients beauty techniques to help restore their appearance and self-image during chemotherapy and radiation treatments. For more information go to
  • Managing Side Effects of Cancer Treatment
  • For news on cancer updates, research and education subscribe to Cancer Connect's newsletters here.
  • Connect with other patients and caregivers for information and support here.