Trauma-induced subarachnoid hemorrhage can be treated by general treatment, prevention of rebleeding, prevention of cerebral vasospasm, treatment of hydrocephalus, prevention of epilepsy, treatment of hyponatremia and hypovolemia, and cerebrospinal fluid therapy under the guidance of doctors. 1. General treatment: closely monitor the vital signs and keep them stable; use mannitol, furosemide and other dehydrating agents to reduce the high cranial pressure; prevent exertion or agitation, keep the bowels unobstructed; and provide symptomatic supportive treatment. 2. Prevention of rebleeding: patients should have absolute bed rest for 4~6 weeks; and adjust the blood pressure within a certain range; also can use antifibrinolytic drugs such as aminoacetic acid to reduce rebleeding. 3. Prevention and treatment of cerebral vasospasm: Oral medication such as nimodipine can effectively reduce the adverse outcomes caused by subarachnoid hemorrhage. 4. Hydrocephalus treatment: hydrocephalus combined with subarachnoid hemorrhage in the acute stage can be treated with cerebrospinal fluid shunt. 5. Prevention and treatment of epilepsy: prophylactic use of anticonvulsants, such as carbamazepine, for patients. 6. Treatment of hyponatremia and hypovolemia: while monitoring blood volume, isotonic fluid can be used to correct hypovolemia, and hypertonic saline can be used to correct hyponatremia. 7. Cerebrospinal fluid therapy: It can promote blood absorption and relieve headache and other symptoms. All of the above medications should be used under the guidance of a doctor. If subarachnoid hemorrhage is diagnosed, early standardized treatment is recommended to reduce the adverse effects of the disease.