Diffuse axonal injury is a more serious craniocerebral trauma, which is commonly caused by external violent injuries such as high fall injuries and traffic accidents. It is caused by excessive intracranial shear force during cranial trauma, which leads to damage to the cerebellum, nerves and blood vessels in the brain, resulting in nerve cell damage. It is important to perform early MRI and early diagnosis for aggressive treatment. Diffuse axonal injury does not have special drugs for treatment, but only general symptomatic treatment, oxygen, to prevent further aggravation of brain cell reaction, intracranial dehydration, such as mannitol, neurotrophic drugs, as well as hyperbaric oxygen, sub-cryogenic treatment, most patients can partially relieve symptoms, most young patients have a better prognosis, or even a complete recovery, older Patients with poorer results