Skin lesions caused by diabetes, the most typical performance is skin itching. This may be due to the relatively high blood sugar, leading to inflammation and skin irritation, leading to itching. The incidence of diabetes complicated with skin itching is 30% ~ 60%, and the proportion may be higher in the late stage of diabetes. Diabetic patients have neuropathy, which leads to an increase in pain threshold. In other words, patients are less sensitive to pain than ordinary people. When ordinary people feel pain, diabetics may not feel pain. If the patient's vigilance is not high at this time, it is easy to induce skin ulcers and it is often difficult to heal. Suggestion: Skin diseases of diabetic patients are indeed more common. Many patients go to dermatology first, and then turn to endocrinology for treatment. If there is intractable itching, general anti-allergic drug treatment is still ineffective. The possibility of diabetes should be considered, and it is recommended to go to the hospital for special examination of this kind of disease.