Diabetic nerve damage is one of the chronic complications of diabetes, and its clinical manifestations mainly depend on the site of damage: 1. Damage to peripheral nervous system: there may be pain, abnormal sweating, glove and sock-like sensation, electric shock-like sensation, numbness and other symptoms; 2. Damage to visceral nerves: there may be urinary symptoms such as urinary incontinence and difficulty in urination, or gastrointestinal symptoms such as constipation, diarrhea and fecal incontinence. Therefore, after diagnosis, diabetic patients should actively control their blood glucose levels to prevent complications, which in turn can cause nerve damage.