The cause of smog is still unclear, and the clinical manifestations are complex and varied. Cerebral ischemia and cerebral hemorrhage are the two main symptoms commonly seen in smog. Cerebral hemorrhage is usually seen as subarachnoid hemorrhage, intraventricular hemorrhage or intracerebral hemorrhage, which usually occurs rather suddenly and makes people unprepared. So, can surgery be done immediately after a smoldering hemorrhage? Patients with smoldering hemorrhage should go to the hospital for symptomatic treatment in the first place, and then after three months of recovery, surgery can be performed. Smoke disease surgery: 1. Direct bypass surgery Although direct bypass surgery may quickly improve the local blood supply to the brain after surgery, restore blood flow and relieve the symptoms of cerebral ischemia, the scope of the surgery that can improve the blood supply to the brain is limited and patients may have symptoms again. 2.Patching The efficacy of patching for children is precise, but the formation of blood vessels after surgery usually takes 3-6 months, during which the probability of stroke is still quite high. In addition, patching is not very effective in 40%-50% of adult patients with smog. 3, combined vascular bypass surgery Combined vascular bypass surgery is a composite procedure of direct bypass + patching, based on vascular bypass, more patching factors are realized, which can improve the blood supply to the brain surface in a larger extent and greatly improve the surgical efficacy, which is an advanced surgery for the treatment of smog. Post-operative precautions for patients with smog 1, in terms of diet, prohibit spicy and stimulating and cold food, the best short-term post-operative diet is based on light, eat more liquid food, which is conducive to the absorption of nutrients and body recovery. 2, do not do playing basketball, soccer and other strenuous sports to avoid wound inflammation, can go outdoors for a proper slow walk. 3, post-operative patients should also pay attention to daily warmth, the body should not be too cool or too hot, according to the weather changes to appropriate increase or decrease clothing, which is more conducive to the recovery of the disease.