Precautions before operation: Do not take aspirin for two weeks before filling lacrimal passage with autologous fat, because aspirin will reduce the efficacy of platelet coagulation. Beauty seekers with a history of bleeding tendency should check platelets and clotting time. Make sure you are healthy before the operation, and there is no infectious disease or other body inflammation. Middle-aged and elderly people need to measure their blood pressure and do ECG if necessary. If there is slight abnormality, medication should be taken according to symptoms before operation. Don't put on makeup before the operation.

Precautions after operation: Keep the fat transplantation site and fat extraction site clean and dry within one week after operation. Do not touch, squeeze or massage the fat-filled area with water. Hot compress or cold compress under the guidance of a doctor when necessary. Diet should be light within one week after operation. Don't eat some spicy food, and don't drink or smoke. Be sure to rest more after surgery to ensure that the surgical site can recover as soon as possible.