Red bumps on the scalp and itchy may be due to ringworm of the head, scalp eczema and folliculitis. 1. Tinea capitis: the formation of tinea capitis may be caused by infection of the scalp by dermatophytes such as Trichophyton mentagrophytes, Microsporum canis, and Trichophyton purpureum, etc. If the tinea capitis develops into tinea capitis pustulosa, follicular papules and small pustules will appear at the lesions and gradually merge into a bulging inflammatory lump, accompanied by itching of varying degrees. 2. Scalp eczema: scalp eczema may be related to heredity, immune abnormality and environmental factors, the patient’s scalp may appear erythema, pimples and itching and other symptoms. 3. Folliculitis: Folliculitis may be caused by the infection of hair follicles by pathogens such as Staphylococcus aureus, which is usually manifested as red pimples, itching, pain and other symptoms, and is commonly found on the scalp, face and other places. Causes of red bumps on the scalp and itchy causes are more, it is recommended that patients seek medical examination to clarify the cause of the disease.