Scalp peeling and crusting may be caused by ringworm of the scalp, seborrheic dermatitis and other causes. 1. Tinea capitis: Tinea capitis is a skin disease caused by dermatophytes infecting the hair and scalp, manifesting itself as alopecia patches on the scalp, peeling and scabbing, accompanied by varying degrees of itching. 2. Seborrheic dermatitis: seborrheic dermatitis is a chronic inflammatory skin disease, occurring in the scalp, face, chest and back and other seborrheic areas, manifested in the skin erythematous rashes, greasy, peeling, scabbing and other symptoms, often accompanied by varying degrees of itching. Scalp peeling and crusting may also have other causes, it is recommended to go to the hospital in time to improve the examination, to clarify the cause of the disease and then give targeted treatment.