With the continuous development of China’s economy and the change of people’s lifestyle, the incidence of cerebral infarction is also increasing year by year, bringing serious impact on people’s life. It is not known that most of the cerebral infarcts are caused by carotid artery stenosis. The carotid artery is an important channel for transporting blood from the heart to the head and face. Once the carotid artery becomes blocked or unobstructed, the brain will suffer from ischemia or insufficient blood supply. This is the connection between carotid stenosis and cerebral infarction, so it is important to maintain a good lifestyle habit in daily life to prevent carotid stenosis from occurring. And if you are unfortunate enough to suffer from carotid stenosis, you must actively treat it. There are many different treatments for carotid stenosis. Mild carotid stenosis can be treated conservatively with medication and regular review, while moderate to severe carotid stenosis requires surgery. Unfortunately, most patients with carotid stenosis are already in the middle to late stages when their condition is discovered. A more appropriate option for surgical treatment of carotid stenosis is carotid artery dissection. Carotid artery dissection is a microscopic procedure that removes the diseased arterial lining, leaving the carotid artery lining smooth and blood flowing smoothly.