Smog is a rare disease, and even today, there are still some local hospitals where the disease is not detected in time and treated scientifically and effectively due to the lack of information and knowledge of health care professionals. In fact, smog was discovered earlier, in the 1950s, by a Japanese specialist who named it. The Japanese medical expert found that the main branches of the cerebral artery ring were occluded bilaterally, and a network of small, fragile blood vessels grew at the base of the skull, which appeared to be smoky when a cerebral angiogram was done, hence the name. After summarizing and analyzing many cases, he found that the major arteries of the brain are either narrowed or occluded; they can be the end of the internal carotid artery, the anterior or middle cerebral artery, or sometimes even the beginning of the posterior cerebral artery; some patients have bilateral lesions, while others may have unilateral lesions. More importantly, prolonged stenosis and occlusion of blood vessels are found, which can cause cerebral ischemia, cerebral infarction, and cerebral hemorrhage. In the treatment of smog disease, first of all, patients need to clearly understand that conservative treatment is not practical for smog disease, and surgical treatment is the effective way to take patients out of danger. At present, we have been verified in a large number of clinical practices that combined vascular bypass is a kind of surgery with good effect in treating smog disease, which can create multiple new blood flow channels in a short time and effectively prevent cerebral infarction and cerebral hemorrhage. Some patients have asked how to take care of smog disease and what to pay attention to. In fact, smog disease can be cured by combined vascular bypass surgery. In addition, patients need to maintain emotional stability and peace of mind after surgery, eat a light diet, eat more vegetables and fruits, take appropriate outdoor exercise and pay more attention to rest, which is more conducive to the recovery of the disease.