Scalp long pimples skinning may be caused by folliculitis, tinea capitis, seborrheic dermatitis and other diseases. 1. Folliculitis: related to bacterial or other pathogen infections, manifested as red papules or pustules centered on hair follicles, sometimes the pustules will rupture and crust, and the patient will have the phenomenon of long bumps on the scalp and skin. 2. Tinea capitis: it is caused by dermatophytes infecting the hair and scalp, mostly seen in children. The main manifestation of alopecia areata with scaling and hair breakage, as well as the phenomenon of pimples, which is manifested as long bumps and skin on the scalp. 3. Seborrheic dermatitis: a common chronic inflammatory skin disease, mostly caused by excessive sebum secretion. Mainly manifested as erythematous rash, surface attached greasy scales or scabs, accompanied by itching, the patient may have the symptoms of scalp long bumps skin. There may be other causes of scalp bumps and skinning, it is recommended that patients go to a regular hospital to clarify the cause of the disease and follow the doctor’s instructions for treatment.