Alopecia areata is an autoimmune disease that causes hair loss, mostly in small, round patches. Learn more about the causes & risk factors.

¿Qué es la alopecia areata? Es una enfermedad que ataca los folículos pilosos (las estructuras de la piel que producen el pelo). En la mayoría de los casos, el pelo se cae en mechones pequeños y …

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 …

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 is an autoimmune disease that causes hair loss, mostly in small, round patches. Learn more about the causes & risk factors.

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.

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.

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 …

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.

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 …