Generally speaking, all hypoxic and ischemic diseases, or a series of diseases caused by hypoxia and ischemia, hyperbaric oxygen therapy can achieve good results; certain infectious diseases and autoimmune diseases, hyperbaric oxygen therapy can also achieve better results. Some infectious diseases and autoimmune diseases can also be treated with hyperbaric oxygen therapy. The diseases with good efficacy include: 1. Myocardial infarction, cardiogenic shock; 4, digestive system: gastric and duodenal ulcers, postoperative ulcers; 5, infections: gas gangrene, tetanus and other anaerobic bacterial infections, viral encephalitis, etc.; 6, air embolism; 7, cerebral thrombosis, cerebral embolism, cerebral atrophy, cerebral insufficiency of blood supply, cerebral contusion, post-traumatic brain syndrome, osteomyelitis, paraplegia, peripheral nerve injury, polyneuritis; 8, skin grafting 8, skin graft, amputation (finger) reimplantation, vasculitis, intractable ulcer, osteofascial septal area syndrome, postoperative wound failure, arterial embolism, poor bone healing, radiation osteomyelitis, crush injury; 9, neonatal asphyxia, cerebral palsy, etc.; 10, central retinal choroiditis, retinal artery embolism, sudden deafness, periodontitis, oral ulcer; 11, dermatological diseases: pityriasis rosea, acne vulgaris, nodular erythema, scleroderma, neurological or diabetic dermatitis, etc. Diseases that can sometimes be treated satisfactorily in combination with other treatments include: multiple sclerosis, radiculitis, myotonic dystrophy, vascular headache, vertebrobasilar artery insufficiency, cervical spondylosis, some elderly and pediatric asthma, chronic ulcerative colitis, diabetic complications (vasculitis, neuritis), aseptic osteonecrosis, intestinal obstruction, high-risk pregnancy, cerebral palsy, uveitis, retinal vein thrombosis, optic neuritis, optic nerve atrophy, etc.