Smoky disease is a less common cerebrovascular disease that is caused by chronic progressive stenosis or occlusion of the major branches of the cerebral arterial ring bilaterally, the end of the cervical vertebral artery, the anterior cerebral artery, the middle cerebral artery, and sometimes the beginning of the posterior cerebral artery, secondary to the formation of an abnormal network of vessels in the skull base. The formation of these abnormal vascular networks at the base of the skull appears as a cloud of smoke on cerebral angiography, hence the name smog. The cause of smog is not well understood, but most scholars agree that smog is a congenital vaso-occlusive disease. Some patients ask if smog is hereditary, how many generations will it be passed on, and will it affect their children? According to medical research, smog is hereditary, but the probability of inheritance is about 10%, which is not very high. Therefore, smog is not necessarily hereditary and does not necessarily affect children. If you are worried, your relatives, including your children, should be screened to see if they are also suffering from smog. Patients with smog should also take it seriously and seek regular treatment in a timely manner. At present, the medical profession basically recognizes that conservative medical treatment for smog is not very meaningful, and once the diagnosis of smog is clear, surgery should be performed as soon as possible. For the surgical treatment of smog, the medical community has been exploring for a long time, including domestic and foreign countries. At present, most experts believe that combined vascular bypass surgery is a more effective treatment method. Combined vascular bypass surgery is a kind of compound surgery, through the dual means of direct bypass + patching, a two-pronged approach, to establish a more adequate and perfect bypass blood supply system for the patient’s brain, greatly improving the patient’s brain blood supply, thus achieving very ideal results.