Lumbar anesthesia is also called subarachnoid block anesthesia, suffering from central nervous system diseases, spinal diseases, local skin infections or severe systemic infections, shock and other diseases of patients and people who can not cooperate with the prohibition of lumbar anesthesia. Lumbar anesthesia is the injection of local anesthetic into the subarachnoid space, acting on the spinal nerve roots, so that the corresponding parts of the anesthesia, clinically known as subarachnoid block, referred to as lumbar anesthesia. This type of anesthesia requires a higher degree of cooperation from the patient. Lumbar anesthesia acts on the spinal nerve roots, so it should try to avoid inducing damage to the central nervous system, or lead to further aggravation of the existing diseases, patients with spinal diseases are difficult to carry out the anesthesia operation. Suffering from central nervous system diseases, such as multiple sclerosis of the spinal cord patients, should not be lumbar anesthesia; suffering from spinal deformity and trauma, spinal tuberculosis and tumor patients, should not be lumbar anesthesia. Meningitis, sepsis, skin infection near the puncture site should not be performed lumbar anesthesia; in addition, shock, coagulation disorders, mental illness, and can not cooperate with the child can not be performed lumbar anesthesia. If you need to carry out this operation, please consult your physician and follow the doctor’s instructions for treatment.