The treatment of traumatic subarachnoid hemorrhage is commonly as follows: 1. Remove the cause: you can prevent and control rebleeding by debridement, suturing, or using hemostatic drugs; 2. Reduce intracranial pressure and reduce brain tissue edema by applying mannitol or furosemide; 3. Prevent and control cerebral vasospasm, which is usually treated with calcium antagonists such as nimodipine; 4. If the condition is not stabilized after conservative treatment, surgical treatment such as lumbar puncture or craniotomy can be performed.