Cerebral hemorrhage, also known as cerebral hemorrhage, is a common disease among middle-aged and elderly people. The main causes of cerebral hemorrhage are hypertension, hyperlipidemia, cerebral atherosclerosis and diabetes; it is also closely related to bad habits such as smoking and alcohol consumption. It has a rapid onset and critical condition, and although actively treated, many patients often have serious sequelae, such as hemiplegia, aphasia or sensory impairment, which is also one of the main diseases that cause death in middle-aged and elderly people. In addition to conventional infusion, medication, rehabilitation or surgery, hyperbaric oxygen therapy is a good adjunct to treatment for cerebral hemorrhage. Why can hyperbaric oxygen treat cerebral hemorrhage? 1, hyperbaric oxygen can reduce the cerebral edema caused by cerebral hemorrhage, and achieve the effect of lowering cranial pressure. 2, hyperbaric oxygen has the effect of scavenging oxygen free radicals, and reduce the damage to brain tissue caused by oxygen deprivation after cerebral hemorrhage. 3, hyperbaric oxygen obviously increases the blood oxygen content and partial pressure of blood oxygen, and increases the diffusion distance of brain tissue capillaries, which can correct the hypoxic state of brain tissue and repair the brain tissue damaged by hypoxia. 4.Hyperbaric oxygen has neural repair effect, which can make damaged nerve repair and regeneration. 5, hyperbaric oxygen can promote the neovascularization of blood vessels, which is conducive to the establishment of new cerebrovascular collateral circulation. When is hyperbaric oxygen therapy good for cerebral hemorrhage? In principle, patients with cerebral hemorrhage can be treated with hyperbaric oxygen after the vital signs are stable without active bleeding and the clinical review of cranial CT confirms that there is no fresh bleeding, but if the patient has high fever, convulsions, agitation can not cooperate with oxygen therapy and high blood pressure can not be hurried into the chamber, such as patients with contraindications to hyperbaric oxygen therapy can not be treated with hyperbaric oxygen therapy.