When Does Alopecia Start?

When does alopecia areata begin? You can get alopecia areata at any age; however, most people develop it by 30 years of age. For many, the disease begins during childhood or the teenage years.

What triggers alopecia?

Alopecia areata occurs when the body's immune system mistakes hair follicles as foreign and attacks them. This causes the hairs to fall out. This specific form of autoimmunity is a lifelong tendency that can be inherited from either parent.

At what age does alopecia typically start to occur?

Hair loss, also called alopecia, can start at almost any age as you enter adulthood. You can start losing your hair as early as your late teens and early 20s. But you might have a full head of hair with almost no thinning or balding until well into your 50s and 60s.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.