What kind of nerve damage can be recovered by hyperbaric chamber treatment depends on the specific circumstances of the nerve injury. There will be differences in the results of recovery from peripheral nerve damage and central nerve damage.1. Peripheral nerve damage: usually due to trauma, compression, strain, chemical injury and other factors, resulting in nerve axon disruption, nerve rupture, nerve conduction dysfunction, triggering peripheral nerve damage and requiring surgery to restore the physical connection of the nerve. Hyperbaric chamber treatment before and after surgery can improve patients’ surgical tolerance, reduce postoperative inflammatory reactions, and accelerate wound healing. At the same time, it can play a protective role for peripheral nerves, promote the repair of damaged nerve cells, inhibit neuronal apoptosis, and have the effect of improving the survival rate of nerve graft, which usually can make the patient’s limb function recovered to a certain extent, but the fine movement cannot be recovered in severe injury; 2, central nerve injury: hyperbaric oxygen chamber treatment not only has a therapeutic effect on central consciousness disorder and mental symptoms, but also on central speech It can also promote the recovery of central speech disorder and motor disorder. For example, patients with cerebral hemorrhage may have certain sequelae, and through hyperbaric chamber treatment, some of these sequelae may be improved and even some limb functions may be restored. However, the central nervous system is very complex, with many nerve clusters, and it is difficult to recover after injury, so patients are recommended to undergo comprehensive treatment.