Many people are clouded and overwhelmed when they get smog disease and don’t understand what it is and how serious it is. In fact, smog disease is a kind of cerebrovascular disease, is the brain’s main arterial vascular stenosis or occlusion, and then caused by the skull base of the abnormal vascular network disease. And in angiography these abnormal skull base vascular network present smoke-like small blood vessel shadow, so it is called smoky disease. What are the contraindications of smog disease, and what are the usual precautions? Patients with smog disease should pay attention to a light diet in daily life, eat more fruits and vegetables, eat more vitamins, proteins and other nutritious food, avoid eating too spicy and fishy food, such as animal offal, pork and so on as far as possible not to eat, avoid frying and deep-frying food. Regular diet should be accompanied by regular work and rest, to ensure adequate sleep, not overworked. Patients with smog disease should not only pay attention to life, but also actively seek treatment, long-term clinical has proved that the drug treatment for smog disease is not long-term effect, only in the short term to relieve the symptoms, but still can not avoid the subsequent seizures, the sudden onset of smog disease is very dangerous, serious will lead to cerebral infarction or cerebral hemorrhage, which has the risk of patients with fatal or incapacitating, therefore, smog disease must be treated early with surgery to minimize dangerous situations. Traditional bypass surgery and patch surgery have their own shortcomings, and many hospitals that perform them cannot guarantee the success rate of the surgery. In this case, combined vascular bypass surgery has been introduced, and it has already brought more than 1,000 cases of smokers out of danger.