After aortic coarctation surgery, precautions include wound protection, blood pressure control, lifestyle modification, and regular review. 1. Wound protection: After surgery, care should be taken to avoid infection of the surgical incision, and the medication should be changed regularly to avoid wetting or contamination. 2. Control blood pressure: after surgery, we should pay attention to control blood pressure within the normal range, so as not to affect the prognosis of long-term high lateral pressure on the wall of the tube. 3. Lifestyle regulation: after the surgery, you need to strictly quit smoking and drinking. Meanwhile, it is recommended to have a light diet, avoiding high salt and high fat diet; overweight people are recommended to reduce their weight; avoid emotional excitement. 4. Regular review and standardization of medication: after discharge from the hospital, it is recommended to have a review within 3~6 months, and then every six months to monitor the changes in the condition; if the physician arranges for the use of medication after discharge, it is necessary to comply with the doctor’s instructions to standardize the use of medication. If there is any discomfort, it is recommended to go to the hospital immediately and follow the doctor’s instructions for treatment.