The presence of itchy skin in diabetic patients often indicates poor glycemic control. Itchy skin is not a characteristic complication of diabetes, but many newly diagnosed diabetic patients may also develop itchy skin, as this symptom is mainly due to disturbances in the entire metabolism of the skin caused by poor glycemic control, resulting in the accumulation of toxins that cause itching and sometimes diabetic neuropathy. Therefore, if a diabetic patient develops itchy skin, it is crucial to assess whether the blood glucose control is up to standard and whether there is a neurological condition, such as diabetic peripheral neuropathy or diabetic autonomic neuropathy, so that timely intervention can be made. This condition is often seen in early stage patients and is not a manifestation of advanced or severe complications, so there is no need to worry too much.