The phenomenon of small pimples on the head is considered to be due to folliculitis, eczema, acne and other factors. 1. Folliculitis: usually caused by hair follicles infected with Staphylococcus aureus, it is an inflammatory skin disease mainly involving hair follicles, manifested as red pimples centered on hair follicles, accompanied by itchy and painful symptoms. 2. Eczema: The condition of small pimples on the head does not exclude the cause of eczema. Some patients may be due to the abuse of chemicals, environmental pollution, mental stress, contact with allergens and other factors, thus causing eczema symptoms on the scalp, manifested in the phenomenon of small pimples. 3. Acne: If the patient’s scalp area of sebaceous gland secretion, coupled with the keratinization of cells around the hair follicle, it is easy to cause local blockage, secondary bacterial infection, acne symptoms such as small pimples on the head. The symptoms of small pimples on the head, there may be other reasons, need to clarify the cause of the cause of treatment and treatment for the cause, do not blindly use drugs.