Constant hair pulling can cause scarring and other damage, including infections, to the skin on your scalp or the specific area where hair is pulled and can permanently affect hair growth. Hairballs. Eating your hair may lead to a large, matted hairball (trichobezoar) in your digestive tract.

Can hair pulling cause head injury?

Subgaleal hematoma (SGH) is a well-known condition in neonates especially after prolonged or instrumental delivery, but it has been rarely reported in childhood. 1-5 This condition is usually secondary to minor head trauma and an interesting mechanism of injury is hair pulling.

What happens if we pull your hair?

Pulling out hair by your root may damage your follicle temporarily, but a new bulb will eventually form, and new hair will grow again through that follicle. According to the TLC Foundation for Body-Focused Repetitive Behaviors, it may take a few months or more than a year in some cases.