Is it normal to eat hair?
Accidentally swallowing a stray hair happens, but regularly choosing to eat hair is uncommon and can cause health problems. If you do it repeatedly or find it hard to stop, it’s worth talking with a healthcare professional.
Swallowing a hair by accident now and then is no big deal. Deliberately eating hair, though, is less common. Some people feel a strong urge to chew or swallow it; that behavior is sometimes called trichophagia, and it can happen alongside hair-pulling or other repetitive habits.
Hair doesn’t digest, and repeated swallowing can lead to a blockage or a mass of hair in the stomach. If this is something you do often, or you’re having trouble stopping, talk with a healthcare professional—no need to feel embarrassed; they’ve heard stranger things.