Itchy red spots on the scalp are considered to be caused by other reasons such as Malassezia folliculitis, eczema, tinea capitis, and seborrheic dermatitis. 1. Malassezia folliculitis: Malassezia folliculitis may be caused by Malassezia bacteria, patients will appear papules, papules, small pustules, redness, itching and other manifestations. If the patient scalp Malassezia folliculitis, the patient will have localized red spots itching symptoms. 2. Eczema: the etiology of eczema is not clear, considering genetic, mental factors, endocrine genetics, environmental heat and other factors. Patients will have erythema, papules, papules, itching, pustules and other manifestations. Therefore, patients with eczema on the scalp will show that there are red spots and itching. 3. Tinea capitis: Tinea capitis is mainly caused by the infection of pathogens such as Trichophyton mentagrophytes, rust-colored microsporidia, and microsporidia canis. Patients will have symptoms such as pinpoint-sized yellow-red spots, small red papules, white scales covering the papules, and itching. Therefore, patients with tinea capitis on the scalp, there are red spots on the scalp itchy performance. 4. Other: patients with seborrheic dermatitis, insect bite dermatitis will also have the symptoms of itchy scalp with red spots. It is recommended that patients with red itchy scalp need to consult a doctor in a timely manner, the doctor according to the patient’s condition to choose targeted measures for treatment.