The sequelae of semi-anesthesia lumbar spine include headache, lumbar pain, urinary retention, low blood pressure, dizziness, nausea and vomiting. 1. Headache, dizziness: low cranial pressure symptoms caused by excessive release of cerebrospinal fluid during anesthesia, this situation requires bed rest with head down and feet high, you can infuse some saline to increase intracranial pressure, you can also use pain medication, such as painkillers and so on. 2. Lumbar pain: because of the lumbar anesthesia when the injury to the supraspinous ligament, interspinous ligament or periosteum, the pain can last for several years, fatigue or sedentary aggravation, you can take the symptomatic drug therapy, such as lumbar pain Ning capsule, you can also be a local closed injection. 3. Urinary retention: the residual anesthetic drugs after anesthesia still have an inhibitory effect on the bladder sphincter diastole, and some of them will produce urinary retention and need catheterization. 4. Hypotension: After anesthesia, you need to lie down for 6 hours, if you get up and move around, you may have hypotension and dizziness. 5. Nausea and vomiting: Consider the side effect of anesthesia or the weakening of gastrointestinal peristalsis after anesthesia. The above sequelae are the most common and can be treated symptomatically.