With the change of time, youth has become a thing of the past. Pay special attention to the tendency of bleeding. Patients with a history of bleeding tendency should check platelets, bleeding and clotting time, and do routine physical examination before operation. Middle-aged and elderly patients should have their blood pressure measured and have an electrocardiogram if necessary. If there is slight abnormality, they should take medicine before operation. The Plastic Surgery Center of Taiyuan 264 Hospital in Shanxi Province has very good experts and doctors to explain patiently to you. You can also go to Baidu to search. With good methods, good skin can be maintained.