How long does it take to recover from smog surgery? To understand the answer to this question, it is important to know that there are several types of surgery for smog. Current surgical treatment options for smog include direct bypass surgery, indirect bypass surgery, and combined vascular bypass surgery. Indications for surgery for smog include symptoms of ischemia or hemorrhage associated with smog, or evidence of decreased cerebral blood flow reserve capacity. In principle, surgery is required as soon as possible after a clear diagnosis is made, but if symptoms of ischemic infarction or hemorrhage develop, surgery is performed 1-3 months after the onset of symptoms. The perioperative period of smoker’s disease requires maintenance of blood pressure, as well as normal blood carbonic acid levels and fluid balance, and attention to monitoring for complications such as cerebral ischemia, including ischemia on the non-operative side. The recovery time after surgery is related to the individual’s physical condition, such as whether there is residual hemiparesis, numbness or limited movement of the limbs due to cerebral hemorrhage. After the surgery, the condition is basically stable for about a week, and the stitches can be removed and the patient can go home, and the patient will be re-examined once a month or so to observe the situation related to blood vessels and wound healing. A follow-up cerebral angiogram or CT angiography of the blood vessels is required at about three months. Therefore, the process of establishing collateral circulation takes some time. The recovery of the surgical incision alone can be improved in 5-7 days after surgery, while the recovery of the corresponding function of the cerebral ischemia residue may take a longer time, and the specific blood flow reconstruction can be gradually established after 3-4 weeks. Therefore, early emergency surgery is required for the detection of smoldering disease, and patients have a shorter postoperative recovery time in the absence of significant functional impairment.