Brain hemorrhage to do hyperbaric oxygen chamber is recommended to generally do 2~3 months, generally the longer the distance from the brain hemorrhage, hyperbaric oxygen chamber treatment time also needs to be longer. Hyperbaric oxygen chamber treatment is a very important means of rehabilitation for cerebral hemorrhage, usually as long as the condition is stable, it is recommended to use hyperbaric oxygen chamber treatment as early as possible. The duration of hyperbaric oxygen chamber treatment needs to be decided according to individual differences. Generally speaking, the longer the treatment time is from the cerebral hemorrhage, the longer the duration of hyperbaric oxygen chamber treatment needs to be. For example, if hyperbaric oxygen chamber therapy is started six months to a year after the hemorrhage, it is generally recommended to do it for about three months. The current routine method of hyperbaric oxygen therapy is to do it five days a week, with two days off, and usually two weeks or a month as a course of treatment. Hyperbaric oxygen is very effective in the first three months after bleeding, and is also effective three to six months after bleeding, but six months to a year of treatment is less effective.