Yellow bumps on the head of young children may be caused by eczema, folliculitis, impetigo and other factors. 1. Eczema: Eczema is an inflammatory skin disease of the superficial dermis and epidermis, especially acute eczema, whose lesions are mainly dominated by pemphigus, accompanied by oozing, and the ooze may be yellow, resulting in localized yellow bumps. 2. Folliculitis: Folliculitis is related to bacterial infection, if not effectively treated, the formation of boils, may flow out yellow fluid, the formation of crusts, resulting in localized yellow bumps. 3. Impetigo: It is caused by Staphylococcus aureus, Streptococcus b hemolyticus, or a mixed infection of the two bacteria. The initial stage of the disease is a red patch, which then turns into a pustule, which ruptures to form a yellowish crust. Parents are advised to bring patients with yellow bumps on the head to the dermatology department of the hospital in a timely manner to clarify the cause of the disease and standardize the treatment under the guidance of the doctor.