Itchy bumps around the buttocks may be caused by eczema, ringworm, insect bite dermatitis, and other diseases such as hives. 1. Eczema: the etiology of eczema is not clear, and may be related to internal infection lesions, environmental heat, dry skin and other factors. Patients will have itchy skin, small blisters, papules, papules, scales and other lesions. Therefore, patients with eczema around the buttocks will have symptoms of itchy bumps around them. 2. Ringworm: ringworm is due to the infection of pathogens such as Trichophyton mustelii, Trichophyton rubrum, and Trichophyton verrucosum. The patient’s skin will have pimples, papules, blisters, itching and other symptoms. If the patient’s buttocks appear ringworm, it will be manifested as itchy bumps around the buttocks. 3. Insect bite dermatitis: insect bite dermatitis is considered to be caused by mosquitoes, mites and other insect bites, if the patient’s buttocks for insect bites may appear pimples, pimples, blisters, itching and other manifestations, so that the patient will be itchy bumps around the buttocks symptoms. 4. Other: patients appear around the buttocks pimples itchy also consider hives, contact dermatitis and other diseases. It is recommended that patients with itchy bumps around the buttocks need to consult a doctor in a timely manner, the doctor needs to be clear in the cause of the selection of targeted measures for treatment.