Through diverse experiments it has been proved that the hyperbaric oxygenation facilitates scarring process avoiding consolidation and healing delays. The objective was describing the evolution of a patient with exposed traumatic fracture after applying hyperbaric oxygen treatment. Male patient aged 51 years who suffered a work accident causing a middle distal third exposed fracture of the left forearm ulna and radius as well as muscles and blood vessels section, and provoking a sharp bone Sudeck atrophy. After the surgical treatment, during the patient`s evolution, hyperbaric oxygenation was indicated for a period of 5 months in three cycles of 20 sessions each; during the third cycle physical therapy and rehabilitation began to be applied. Hyperbaric oxygenation treatment was effective, shortening traumatic lesions evolution time and improving symptoms and the patient injured member functional status.