It has been eight days after lumbar laminectomy, and the dizziness may be related to anesthesia reaction, postural hypotension, malnutrition and so on. 1. reaction to anesthesia: lumbar intervertebral foramenoscopy surgery needs to be carried out under general anesthesia, due to individualized differences, after the application of anesthesia, the body can have a series of reactions such as dizziness, agitation and so on, the metabolism of each person is different, and dizziness due to anesthesia can also exist eight days after the operation. 2. Postural hypotension: after lumbar intervertebral foraminal surgery, strict bed rest is required. Prolonged bed rest can lead to changes in intracranial blood supply, making patients experience dizziness and other symptoms, especially when changing body position. 3. Malnutrition: More bleeding during lumbar intervertebral foramenoscopy surgery or poor diet and insufficient nutritional intake after surgery can lead to malnutrition and cause dizziness and other symptoms. Dizziness after lumbar laminectomy can also be caused by a variety of reasons, it is recommended to go to the hospital in a timely manner to review the cause of dizziness and then carry out targeted treatment to avoid aggravating the condition.