Alopecia Areata–Hair Loss Symptoms, Types, & Causes | NIAMS
Alopecia areata is an autoimmune disease that causes hair loss, mostly in small, round patches. Learn more about the causes & risk factors.
Alopecia areata | Temas de salud | NIAMS
Diagnóstico de la alopecia areata Por lo general, los médicos diagnostican la alopecia areata haciendo lo siguiente: Examinan las zonas de caída del pelo y observan las uñas. Examinan el pelo y los …
Alopecia Areata: Diagnosis, Treatment, and Steps to Take
What is alopecia areata? It is a condition that attacks your hair follicles (they make hair). In most cases, hair falls out in small, round patches.
Alopecia Areata: Research & Resources
Alopecia areata is an autoimmune disease that causes hair loss, mostly in small, round patches. Learn more about the causes & risk factors.
Skin Diseases, Conditions, & Disorders | NIAMS
Jun 5, 2025 · Find information on diagnosis, treatment, and prevention for skin conditions caused by allergies, irritants, genetic makeup, certain diseases, immune system problems and more.
Site Search | NIAMS
What is alopecia areata? It is a condition that attacks your hair follicles (they make hair). In most cases, hair falls out in small, round patches.
Autoimmune Diseases - Overview and Types | NIAMS
Mar 22, 2023 · Types of Autoimmune Diseases There are several types of autoimmune diseases. These include the following. Alopecia areata happens when the immune system attacks hair follicles and …
All Diseases and Conditions | NIAMS
Jun 5, 2025 · Alopecia Areata What is alopecia areata? It is a condition that attacks your hair follicles (they make hair). In most cases, hair falls out in small, round patches.
Site Search | NIAMS
What is alopecia areata? Alopecia areata is a disease that causes hair loss. In alopecia areata, the immune system attacks the structures in skin that form hair (hair follicles). Alopecia areata usually …
Newsroom | NIAMS
The NIAMS Newsroom has the latest on our supported research in bone, joint, muscle and skin health and diseases.