The consequences of not lying down after lumbar puncture, the consequences of not lying down after lumbar puncture will appear low cranial pressure headache, mainly manifested in the lumbar puncture after getting up, sitting up or after the activities of the headache, some accompanied by nausea, vomiting, and some have psychiatric symptoms, epileptic seizures, at this time, the patient lying down and resting or drinking a lot of water after the headache can be relieved. Low cranial pressure headache caused by lumbar puncture, first of all, because the patient after lumbar puncture bedtime is too short, because after lumbar puncture is easy to cause cerebrospinal fluid leakage, then get out of bed too early activities will appear intracranial pressure will be lowered, which will be manifested in the wake up and activities of the headache, and some serious patients will also appear in the cerebral hemorrhage situation. Therefore, patients must stay in bed for 6-8 hours after lumbar puncture, and drink more water to prevent low cranial pressure headache.