General wellness

5 top causes of hair loss

Learn why hair can thin and ways to help prevent losing more hair.


LearnSkinHair loss5 top causes of hair loss
Hair disorders
Stress
Hormone changes
Nutrient deficiencies
Medical conditions and medications
Hair care

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Do you ever feel like you’re shedding more hair than you should? Maybe you’ve noticed a little too much hair in your brush or there are more strands than usual circling around the shower drain. A bald patch might even start to peek through. You’re not alone.

While an estimated 80 million people in the United States experience hereditary hair loss, there are many reasons a person’s hair may start to thin. If you’re concerned about losing your hair, reach out to your healthcare provider (HCP). They can work with you to look into possible causes and recommend treatments.

In the meantime, here are some of the most common causes of hair loss—and what help may be available.

Sources: American Academy of Dermatology. Hair Lo... + 6
  1. American Academy of Dermatology. Hair Loss: Who Gets and Causes. Accessed March 10, 2025.
  2. American Academy of Dermatology. Hairstyles that pull can lead to hair loss. November 6, 2024.
  3. American Hair Loss Association. Drug-induced hair loss. Accessed March 11, 2025.
  4. Cleveland Clinic. Hair Loss. August 26, 2021.
  5. Cleveland Clinic. Telogen Effluvium. December 1, 2022.
  6. Harvard Medical School. Vitamins, minerals, and hair loss: Is there a connection? April 22, 2024.
  7. National Alopecia Areata Foundation. Available Treatments. Accessed March 10, 2025.
Written by Jordan Lawson.
Medically reviewed by Amy Gonzales, MD.March, 2025
Updated onSeptember, 2026
Written by Jordan Lawson.
Medically reviewed by Amy Gonzales, MD.March, 2025
Updated onSeptember, 2026
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