Sixty-five-year-old men sleeping at night itchy body may be eczema, scabies, hives and other diseases caused. 1. Eczema: the cause of the disease is not clear, may be related to genetic, immune abnormalities and other factors. Patients will appear localized pimples, blisters, erythema and other symptoms, accompanied by itching, exacerbated at night, can occur in all parts of the body surface. 2. Scabies: the cause of the disease is mainly caused by scabies mites parasitized on the surface of human skin, poor living environment, crowded living environment may also induce the disease. The main manifestations are pimples, papules, tunnels, and itching on the thin and tender parts of the skin such as finger cracks, wrists, elbow sockets, and external genitalia, and the itching of the skin is usually aggravated at night. 3. Urticaria: The cause may be related to infection, drugs, food and other factors. There will be windy bumps of different sizes all over the body, accompanied by itching, which may flare up at night. Sixty-five year old men sleep at night on the body itching more causes, it is recommended to go to the regular hospital to consult the examination, clear causes.