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Alopecia areata
Alopecia areata is a disease in which hair suddenly falls out, leaving round bald patches. In about half of people with alopecia areata, the hair grows back, but may fall out again. In some people, it never grows back.
What causes alopecia areata is still unknown. Scientists suspect it is an autoimmune disease, meaning the body's immune system mistakenly attacks the hair follicles. The painless hair loss mainly affects the scalp, but eyebrows and eyelashes may fall out as well.
Several treatments exist, but with limited effectiveness. These treatments include
- applying a cream containing a corticosteroid drug or minoxidil (Rogaine)
- injecting a corticosteroid drug directly into bald patches
- exposing the bald areas to ultraviolet light
- taking antiviral drugs.
Each treatment has been effective for some people, but none is universally successful. In addition, each has its own side effects or drawbacks.
Disclaimer:
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No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.

Wildfires: How to cope when smoke affects air quality and health

What can magnesium do for you and how much do you need?

Dry socket: Preventing and treating a painful condition that can occur after tooth extraction

What happens during sleep — and how to improve it

How is metastatic prostate cancer detected and treated in men over 70?

Could biofeedback help your migraines?

What is autism spectrum disorder?

Plantar warts: Options for treating this common foot condition

Cancer survivorship: What comes next after treatment

Nutritional yeast: Does this savory, vegan seasoning pack a nutritional punch?
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