Patients with diabetes can have double eyelid surgery when their blood sugar is under good control. Double eyelid surgery is a delicate procedure and blood sugar should be managed more strictly. Before undergoing double eyelid surgery, the patient’s physical condition should be evaluated by a doctor to see if it meets the conditions for surgery. Normally, diabetic patients should have fasting blood sugar levels controlled at 4.4-7.0 mmol/L and non-fasting blood sugar controlled at 10 mmol/L or less before undergoing surgery. If blood glucose is outside this range, surgery is not recommended to avoid slow or non-healing postoperative wound healing, which in turn can lead to infection, scarring and other adverse consequences. During the perioperative period, diabetic patients can use insulin to control their blood sugar under the guidance of their doctor to help the recovery of the postoperative wound. After double eyelid surgery, be sure to visit the clinic regularly for medication changes and to closely observe the healing of the trauma. If the wound heals well, there is no need for long-term antibiotics; if the wound heals poorly and has a tendency to become purulent you should seek prompt medical attention for aggressive anti-infection treatment.