Lumbar puncture generally need to lie flat for 4-6 hours, mainly to avoid activities after the puncture site of cerebrospinal fluid outflow caused by the lowering of cranial pressure, if the sudden decrease in cranial pressure will cause dizziness, headache, or even nausea, vomiting and other symptoms. If lumbar puncture, no matter anesthesia or puncture biopsy generally need to lie down for 4-6 hours, but if lying down for a long time some patients can’t stand it, then you can turn sideways, two hours later sideways is not a problem, axial turn over generally won’t be a problem. For patients with more obvious symptoms, may lie down after 6 hours can not all of a sudden sit up or violently stand up, but also to first shake the head of the bed gradually gradually sit up, this time dizziness or headache symptoms will be reduced a lot. If the time to sit up or stand up too quickly cranial pressure will also be instantly reduced, can also cause dizziness, headache symptoms.