If there are red pimples on the scalp, consider the possibility of folliculitis, seborrheic dermatitis and other diseases. (1) Folliculitis: It usually occurs on the head, face and neck, because the hair follicle is invaded by Staphylococcus aureus, causing biochemical purulent inflammation at the mouth of the hair follicle. Folliculitis often occurs in batches, one after another, repeatedly. At the beginning, it is a red papule the size of a needle to a mung bean, with hair passing through the center. The patient feels itchy or painful, and then the papule quickly turns into a pustule. A small amount of pus and plasma can be discharged when the pustule ruptures or the hair in it is pulled out. Scars may be left after the inflammation subsides. (2) Seborrheic dermatitis: It is a chronic papular and scaly inflammatory skin disease that occurs in the rich parts of the sebaceous glands. At the early stage, it is an inflammatory papule around the hair follicle, and then it is manifested as dark red patches with clear boundaries and a little yellow, covered with greasy scales or crusts, with mild itching. When the patient finds a small red pimple on the scalp, causing discomfort, it is recommended to go to the dermatology department of the hospital for relevant examination in time to determine the specific cause before treatment.
