Smoke disease is so uncommon that many people may not have heard of it, and even some grass-roots health care workers know little about it. Indeed, smog disease is a relatively rare cerebrovascular disease, which was discovered by Japanese medical experts in the 1950s and 1960s. Up to now, human understanding of smog disease is only 60 to 70 years, and the incidence of the disease is relatively low, so it is normal that many people do not understand. Although rare, the harm and consequences of smog disease are the same as those of general cerebrovascular disease, which can lead to cerebral ischemia, cerebral infarction, cerebral hemorrhage, epileptic seizures, etc., and in serious cases, it can even threaten the patient’s life. Moreover, after smog disease leads to cerebral infarction and cerebral hemorrhage, if the smog disease is not treated in time, then later on, re-infarction and re-haemorrhage may occur repeatedly, and the harm may be even more serious. Some patients ask, how long does it usually take for brain hemorrhage from smog disease to recur? This time is not very fixed, some patients may be within a few days again brain hemorrhage, some patients may be a few months, a few years apart, it is equivalent to an untimely bomb, may bring serious consequences at any time. Therefore, patients suffering from smog disease should not take any chances, and should not ignore the problem just because they do not have an attack for a while, but should take the right course of treatment. Once a clear diagnosis of smoky disease is made, and if the indications are met, surgical treatment should be carried out in a timely manner. Surgery for smog disease is currently more effective than combined vascular bypass surgery.