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   What is alopecia areata?

   • Alopecia areata is a disease that happens when the immune system attacks hair follicles and causes hair loss. Hair follicles are the structures in skin that form hair. While hair can be lost from any part of the body, alopecia areata usually affects the head and face.

   Alopecia Areata - Hair loss Causes & Living With It | NIAMS

   www.niams.nih.gov/health-topics/alopecia-areata

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   What does alopecia areata look like?

   • Alopecia areata typically begins with sudden loss of round or oval patches of hair on the scalp, but any part of the body may be affected, such as the beard area in men, or the eyebrows or eyelashes. Around the edges of the patch, there are often short broken hairs or “exclamation point” hairs that are narrower at their base than their tip.

   Alopecia Areata - Hair loss Causes & Living With It | NIAMS

   www.niams.nih.gov/health-topics/alopecia-areata

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   What are the different types of alopecia areata?

   • The types of alopecia areata vary according to the extent of hair loss and other symptoms. They may also have different treatments and outlooks: Patchy alopecia areata is the most common type. It’s characterized by one or more coin-sized patches of hair loss on your scalp or body.

   Alopecia Areata: Hair Loss Causes, Treatment, and More - Healthline

   www.healthline.com/health/alopecia-areata

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2. www.niams.nih.gov › health-topics › alopecia-areataAlopecia Areata - Hair loss Causes & Living With It | NIAMS

   www.niams.nih.gov › health-topics › alopecia-areata

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   Alopecia areata is an autoimmune disease that attacks hair follicles and causes hair loss. It can affect any part of the body, but usually the scalp and face, and has different types and patterns of hair loss.

3. my.clevelandclinic.org › health › diseasesAlopecia Areata: Symptoms, Causes, Treatment & Regrowth

   my.clevelandclinic.org › health › diseases

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   Aug 30, 2023 · Alopecia areata is an autoimmune disease that causes patchy hair loss anywhere on your body, but it most commonly affects the scalp. Learn about the symptoms, causes, diagnosis, treatment and outlook of this condition from Cleveland Clinic.

4. www.healthline.com › health › alopecia-areataAlopecia Areata: Hair Loss Causes, Treatment, and More

   www.healthline.com › health › alopecia-areata

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   Alopecia areata is an autoimmune condition that causes hair loss in patches or all over your body. Learn about the types, symptoms, causes, diagnosis, and treatment options for this common hair disorder.

   • What is alopecia caused by?

     There's no known cause for alopecia areata. However, some factors, such as genetics and certain health conditions, may increase your chances of dev...
   • Is alopecia caused by stress?

     Stress is a potential trigger for hair loss. It has also been associated with telogen effluvium, a type of alopecia that comes on suddenly. Hair ty...
   • How does alopecia go away?

     Treatment for alopecia areata will depend on the type, cause, and severity of the hair loss. However, a treatment plan may include a combination of...

5. www.webmd.com › alopecia-areataAlopecia Areata & Hair Loss: Causes, Treatments, and ... - WebMD

   www.webmd.com › alopecia-areata

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   Apr 26, 2022 · Alopecia areata (AA) is a chronic, autoimmune disease and while most associate it with temporary and permanent hair loss, it affects the nails in up to 46% of those affected. AA nails may appear...

6. mcpress.mayoclinic.org › what-is-alopecia-areataWhat is alopecia areata? - Mayo Clinic Press

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   Mar 14, 2024 · Alopecia areata is an autoimmune disorder that causes hair loss in patches or total baldness. Learn about the risk factors, diagnosis and options for managing this condition from a Mayo Clinic dermatologist.

7. www.mayoclinic.org › diseases-conditions › hair-lossHair loss - Symptoms and causes - Mayo Clinic

   www.mayoclinic.org › diseases-conditions › hair-loss

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   Jan 19, 2024 · Overview. Hair loss (alopecia) can affect just your scalp or your entire body, and it can be temporary or permanent. It can be the result of heredity, hormonal changes, medical conditions or a normal part of aging. Anyone can lose hair on their head, but it's more common in men. Baldness typically refers to excessive hair loss from your scalp.

8. dermnetnz.org › topics › alopecia-areataAlopecia Areata: Causes, Diagnosis, and Treatment — DermNet

   dermnetnz.org › topics › alopecia-areata

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   Alopecia areata is an autoimmune condition affecting hair follicles causing hair loss. It typically presents with discrete bald patches on the scalp but can cause hair loss from all hair-bearing areas on the body. Alopecia is a Latin term meaning hair loss, and areata refers to the patchy nature of the hair loss.