Most people are afraid to hear that smog is a rare disease with a high rate of disability and death. It is true that smog is not very common in life, and that it can be very dangerous. However, patients with smog do not have to be particularly fearful and have a good chance of recovery if they are actively treated with surgery after detection. Direct bypass, indirect bypass and combined vascular bypass are three common surgical procedures for the treatment of smog. So, is smog bypass surgery open or minimally invasive? Smoke disease surgery requires a craniotomy. Smoke patients have lesions inside the brain, and craniotomy is necessary to improve the smoke deformities in the skull. Whether it is a direct bypass, indirect bypass or combined vascular bypass, it usually requires an intracranial operation. Although surgery for smog is craniotomy, patients and their families do not need to be overly nervous, as the surgery is safe in professional smog hospitals with experienced specialists. Some patients with smog have mild symptoms at the beginning, and may experience dizziness and headache, but they will be relieved soon, so they take a chance and wait for the disease to heal itself instead of actively seeking medical treatment. The symptoms will gradually worsen, and later numbness and weakness of limbs, speech dysfunction, epileptic convulsions, and cerebral hemorrhage will occur, which may lead to death in serious cases. Combined vascular bypass surgery effectively treats smog Combined vascular bypass surgery treats smog and achieves good clinical results. Combined vascular bypass surgery is an effective means of treating smog disease. Through the composite procedure of bypass + patching, a systematic and perfect blood flow reconstruction is established, which greatly improves the blood supply to the brain and greatly reduces the chance of cerebral infarction and cerebral hemorrhage, with definite efficacy.