For local anesthesia surgery, it is enough to conduct general blood tests before surgery, including routine blood tests, coagulation function, preoperative infection indicators, to rule out the inability to do surgery. For some surgery that requires general anesthesia, the pre-operative examination is more, including blood type, biochemical examination, electrolytes, electrocardiogram, cardiac ultrasound, abdominal ultrasound, lung function and so on. If you have had a special disease or trauma to the eye, you need to go to the ophthalmology department for a checkup to further rule out the problem of not being able to do plastic surgery. What medications should I not take before surgery? You need to stop taking blood-activating drugs and anticoagulant drugs, etc. (such as aspirin, warfarin, gum and other drugs or supplements, as well as traditional Chinese medicines that invigorate blood circulation and remove blood stasis) 1 week before the surgery, because these drugs can affect the body’s clotting function, leading to intraoperative bleeding and postoperative hematoma. If you have a history of high blood pressure or diabetes, you can take relevant antihypertensive or hypoglycemic medication as usual to ensure that your blood pressure and blood glucose are kept in the normal range both before and after the operation, so as to minimize the occurrence of complications such as postoperative bleeding, infection and poor healing? Can I have surgery during my menstrual period? It should be analyzed on a case-by-case basis. During the physiological period, due to the influence of various endocrine hormones, various systems of the body quietly undergo a series of changes, such as mood fluctuations, increase in the brittleness of blood vessels, prolongation of the clotting time, and lowering of the body’s resistance, and so on. Due to the endocrine imbalance, the body’s resistance to pathogenic bacteria is significantly lower than that of normal people, so it is easy to cause infections. On the other hand, the blood in the body will be in a state that is not easily coagulated during physiological period. Therefore, once there is a blood vessel rupture (e.g. surgical injury), even a relatively small blood vessel rupture will lead to more bleeding. Strictly speaking, the changes in the body begin 1 week before the start of the physiological period, and major surgery is not recommended from this time until the end of the physiological period. For minor surgery such as double eyelids and eye opening, it is possible to perform the surgery if blood tests and other tests confirm good results.