1. You must notify the surgeon about the use of any medication, especially: weight loss drugs, steroids, antidepressants, anti-hemorrhagic drugs, anticoagulants, anti-inflammatories, anuretics, and diuretics, antirheumatics, drugs containing aspirin (acetylsalicylic acid), vitamin E or Gingko biloba, contraceptives;

2. Hypertensive and diabetes patients will receive special guidelines;

3. Smoking and use of toxics, drugs and alcohol are factors that, although not impeding the surgeries, may lead to postoperative complications;

4. Smoking, for example, impairs tissue oxygenation, hampering circulation and healing. Therefore, total smoking cessation is recommended for at least one month before and one month after surgery;

5. Diets: Avoid long fasting periods or rapid weight loss the days immediately before surgery. Your weight must be stable, and your diet healthy and balanced for at least 2 weeks before surgery;

6. Avoid alcoholic beverages or substances that may be harmful to surgery and anesthesia for at least 1 week;

7. Plan your social, domestic or school activities in order not to be indispensable to others during a period of approximately 2-3 weeks;

8. Changes in your general status (colds, sicknesses, premature menstruation, clotting disorders, such as bruising tendency, excessive bleeding, stroke history etc.) shall be reported up to the day before surgery.