Dizziness after surgery is mainly due to the following reasons: 1. blood pressure, after surgery generally need to lie in bed for a period of time, when standing for a long time or squatting, the heart can not quickly pump more blood, the head blood supply is insufficient, it will cause dizziness, generally need to slowly recuperate from sedation, can gradually ease. If there is hypertension in the past, but no medication is taken after surgery, dizziness can also occur and antihypertensive medication is needed.2. A short period of time after surgery when the anesthetic is not completely metabolized can also cause dizziness.3. If it is a larger surgery, it usually leads to excessive blood loss, which can also lead to dizziness and requires increased dietary nutritional intake, such as appropriate more high-quality protein, such as fish, shrimp, etc., and appropriate more intake of foods rich in vitamins and Fiber-rich foods, such as fruits and vegetables, and a diet rich in iron, such as red dates and eggplant, should be added appropriately. However, if dizziness persists, prompt consultation with the attending physician is required.