Causes of Hair Loss (American Academy of Dermatology)

Tier 1: Established: peer-reviewed research or government health authority
Publisher: American Academy of Dermatology · Published: August 19, 2026 · Accessed: August 19, 2026

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Claims this source supports

• Hair loss has many causes, and treatment depends on identifying what is causing it in a given person.
• The most common type of hair loss is hereditary (pattern) hair loss, which affects both men and women.
• Temporary hair shedding can follow triggers such as stress, illness, or other physical stressors.
• A board-certified dermatologist can help determine the cause of hair loss and what can be done about it.