The scalp scabs can spread. The condition isn’t contagious ... but it likely won’t come back in the same spot. One type of lupus, discoid lupus erythematosus, mainly affects your skin.

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 ...