Most scabs on the scalp aren’t cause for concern. They may be caused by exposure to an irritant or a mild skin condition, and either heal on their own or with over-the-counter (OTC) treatments.

Scabs on the scalp can be caused by inflamed hair follicles or inflamed skin. It can also be caused by infestations of lice or an infection called scalp ringworm. In rare cases, scabs that bleed ...