The essence of smog disease is that the blood vessels supplying the cerebral hemispheres, known medically as the internal carotid artery, become occluded. When the internal carotid artery is occluded, the brain is in a state of ischemia, and the brain’s ischemia stimulates the brain to grow many new small blood vessels, and these many small vessels look like smoke when an angiogram is done. Smoke disease causes two major problems: 1. Cerebral ischemia: Although many new small blood vessels grow in the brain, the blood that these small vessels can supply is still not enough, so the patient has insufficient blood supply to the brain, often has headaches, no strength in the hands and feet, decreased intelligence, and sometimes serious sleep disorders occur. With the development of the disease, the patient may also have cerebral infarction. 2. Cerebral hemorrhage: These new blood vessels are structurally imperfect, and coupled with a heavy burden, they often rupture, leading to cerebral hemorrhage. Since the site where the hemorrhage occurs is often important, the consequences are more serious, and the patient may experience paralysis, unclear speech, and other problems. The cause of the occurrence of smoker’s disease is still unknown, and there is no ideal drug treatment for it. In the past, this disease was also considered inoperable, but now a variety of surgical procedures have been developed to treat smoker’s disease, including bypass, temporalis muscle patching, dural reversal, and “skull drilling for blood flow reconstruction”. After I returned to China in 2006, I treated many smog cases surgically. The operation of “cranial borehole reconstruction” is very traumatic, fast and effective, and the patient’s symptoms are often significantly improved by the time they are discharged from the hospital. Therefore, I now use this surgical method for most smog diseases.