Clinically, diabetes is mainly manifested as hyperglycemia. Typical cases may have symptoms such as polyuria, polydipsia, polyphagia and emaciation. But some diabetics may also have itchy skin. Let's take a closer look. 1, this is because the increase of glucose content in the skin of diabetic patients will stimulate autonomic nerves and nerve endings, make them dysfunctional, and finally cause skin itching. If diabetic patients are chronically dehydrated for a long time, sweating will be reduced, skin will be dry, and skin itching will occur. In addition, uremia caused by renal insufficiency in diabetic patients can also induce skin itching. 2. Itching of skin in diabetic patients is mainly caused by diabetes. Treat both the symptoms and root causes, not just itching. To control blood sugar, we must first go to the hospital to ask a specialist for treatment, so that blood sugar can be controlled within the normal range. Only by controlling blood sugar can skin itching be alleviated and cured.