The carotid artery is a large blood vessel in the human body, which is an important channel for the heart to supply blood to the brain and head and face, so the health and smoothness of the carotid artery is very important to the health of the whole body. However, carotid artery stenosis is a relatively common type of cerebrovascular disease in the clinic, carotid artery stenosis will lead to the heart to the brain blood supply channel is not smooth, resulting in insufficient blood supply to the brain, the more serious will lead to cerebral infarction, very dangerous. So what are the symptoms and solutions of carotid artery insufficiency? Let’s talk about the symptoms first. Carotid artery stenosis causing insufficient blood supply can cause chronic fatigue and weakness, transient limb disadvantage, dizziness, memory loss, blurred vision, impaired consciousness, speech disadvantage, and so on, and severe cerebral infarction, resulting in hemiplegia, aphasia, and so on, and can even be life-threatening. As for the solution of carotid artery stenosis, it depends on the severity of the disease: generally speaking, mild carotid artery stenosis, that is, the stenosis rate of less than 50%, generally do not have serious symptoms, this time the internal medicine conservative drug treatment, control and stabilization of the condition, and regular review on the line; and if the carotid artery moderate stenosis, that is, stenosis rate of 50% -70%, if there is no symptom can be treated conservatively, and if there are obvious symptoms, need timely surgical treatment. If there are obvious symptoms, timely surgery is needed; and if the carotid artery stenosis is severe, that is, the stenosis rate of more than 70%, then no matter whether there are no symptoms, it is recommended that early surgical treatment, because this situation may occur at any time cerebral infarction, the risk is very high. For the surgical treatment of moderate to severe carotid artery stenosis, carotid endarterectomy is generally preferred.