Most people notice ear hair by accident. A stray strand catches the bathroom light, or a barber casually points it out during a haircut. It’s easy to laugh it off as another annoying sign of “getting older,” but noticeable ear hair isn’t simply a cosmetic quirk. It can be influenced by hormonal activity, genetics, and the normal biological changes that happen as we age.

There’s a long-running joke that hair somehow “moves” from your head to your ears and nose over time. Hair doesn’t actually migrate, of course. Most people already have fine hairs around their ears, but some can become longer, thicker, or more noticeable with age. Genetics and sensitivity of individual hair follicles to hormones called androgens are thought to play an important role. Interestingly, these hormones can affect hair follicles differently depending on where they are located on the body.