If a diabetic patient has itchy body, there are several conditions: 1. The skin is prone to breeding bacteria in the state of high sugar stimulation, and the skin is dry, in this case prone to itchy skin and skin infection. 2. Diabetic patients with long-term poor blood sugar control can cause local microangiopathy as well as neuropathy, resulting in malnutrition, which can also lead to itchy skin. 3. Some drugs, such as sulfonylureas 4. Diabetic patients are prone to combined skin lesions, such as chronic eczema, in which case they need to be treated by a dermatologist. For diabetic patients, the key is to control blood sugar, and if necessary, you can take nerve-nourishing drugs and topical anti-itch creams.