The pain suffered by patients with smog is unimaginable, so most of the patients need active surgical treatment after suffering from smog. So, is it necessary to perform surgery to establish collateral circulation in smog? This is the concern of many patients, here is a detailed introduction, I hope it will help you. Do I need to have a hand to establish the collateral circulation of smog? This mainly depends on the severity of the patient’s condition, and the length of recovery time after treatment is not quite the same for patients of different severity. Patients in this category require active rehabilitation and follow-up treatment after surgery. For this type of patient it is recommended to actively engage in sports, exercise, and rehabilitation after surgery. Currently, the main treatment for smog is surgery, and different treatments are used for different patients. The most common surgical treatments are direct bypass surgery or indirect bypass surgery. These two surgical methods have limitations and shortcomings, and sometimes the results may not be very satisfactory. Combined vascular bypass surgery can effectively solve the problem of smog by successfully establishing the main intracranial and extracranial arterial blood vessels through bypass, rapidly improving the local blood supply, and supplemented by patching surgery, gradually establishing a more extensive blood supply bypass after 3-6 months, so that the patient’s pain can be effectively relieved.