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Alopecia Areata Directory
In alopecia areata, the body's immune system attacks the hair follicles. Follow the links below to find WebMD's comprehensive coverage about how alopecia areata is contracted, what it looks like, how to treat it, and much more.
Medical Reference
The Signs of Hair Loss
Learn more from WebMD about the various symptoms of hair loss in men, women, and children.
The Basics of Hair Loss
Learn more from WebMD about the various causes of hair loss in men and women.
Treating Hair Loss
WebMD explains the various treatments for hair loss.
Tips for Buying a Hairpiece
What to look for, what to avoid when buying a hairpiece.
Slideshows & Images
Picture of Alopecia Areata
Alopecia areata is a type of hair loss that occurs when your immune system mistakenly attacks hair follicles, which is where hair growth begins. The damage to the follicle is usually not permanent.
Picture of Alopecia Areata
Alopecia areata, nails. Pitting in organized transverse rows giving the nail a "hammered brass" appearance.