Diabetic patients may not have obvious symptoms in the early stage, some patients may have symptoms such as drinking, eating, urinating, weight loss, etc., and may have local or generalized itching from time to time, but there is no visible problem with the skin, and there is no such thing as “three major symptoms of itchy diabetic skin”. The itchy skin of diabetic patients may be related to dry skin, diabetic neuropathy, allergies and so on. Diabetic patients in long-term high blood sugar, osmotic diuretic state, the skin water content decreases, destroying the skin barrier function, moisturizing function, resulting in itchy skin. Diabetic patients taking some oral hypoglycemic drugs or injecting insulin drugs and other drug allergies, may also lead to itchy skin. People with diabetes can keep their skin healthy and prevent itchy symptoms by controlling blood sugar, using moisturizers, and reducing skin irritation. When itchy skin occurs, it is recommended to go to the hospital in a timely manner, under the guidance of the doctor to clarify the cause of the disease, and standardized treatment.