Itchy raised skin on the back of the neck may be caused by eczema, ringworm, folliculitis and other diseases. 1. Eczema: Eczema may be caused by heredity, immune abnormality, hormone level change, endocrine disorders and other factors, patients may have blisters, pimples, itchy symptoms, manifested as raised skin. 2. Tinea corporis: Tinea corporis is caused by dermatophyte infection, this disease can be transmitted through direct contact or indirect contact and other ways of infection, patients will appear red papules, papules, itching and other symptoms, also can lead to the back of the neck skin bulge. 3. Folliculitis: folliculitis is mainly caused by bacterial and fungal infections, skin trauma, local sweating and other factors can also trigger this disease, patients will appear red papules, pustules and other symptoms, making the skin raised. Itchy skin on the back of the neck with bumps does not exclude other causes, it is recommended that the patient to the hospital in time, clear causes, under the guidance of the doctor symptomatic treatment.