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How can your immune system cause hair loss in men?

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If you have sudden hair loss that leaves round bald spots about the size of a quarter in various places on your head, you may have a genetic condition called alopecia areata. It often begins in childhood. You’re more likely to have it if a close family member has it.

Your body’s own immune system attacks your hair follicles, causing small patches of hair to fall out. There’s no pain or sickness involved, and it’s not contagious. Your hair may grow back, but it may fall out again, too.

From: What Causes Hair Loss in Men? WebMD Medical Reference

SOURCES:

American Academy of Dermatology: “Hair Loss.”

Mayo Clinic: “Hair Loss.”

National Institute of Arthritis and Musculoskeletal and Skin Diseases: “Alopecia Areata.”

Mental Health America: “Hair Pulling.”

Robert T. Leonard Jr., DO: “The truths and myths surrounding hair loss.”

Genetics Home Reference: "Androgenetic alopecia."

Reviewed by Melinda Ratini on March 09, 2018

SOURCES:

American Academy of Dermatology: “Hair Loss.”

Mayo Clinic: “Hair Loss.”

National Institute of Arthritis and Musculoskeletal and Skin Diseases: “Alopecia Areata.”

Mental Health America: “Hair Pulling.”

Robert T. Leonard Jr., DO: “The truths and myths surrounding hair loss.”

Genetics Home Reference: "Androgenetic alopecia."

Reviewed by Melinda Ratini on March 09, 2018

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How can impulse control disorder cause hair loss in men?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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