Transient ischemic attack refers to the clinical symptoms of transient cerebral ischemia, such as one side of the limb inactivity, numbness, speech or vertigo, double vision, ataxia and choking on drinking water, etc. The vast majority of these symptoms disappear within one hour. And the vast majority of these symptoms disappear within one hour. It is characterized by recurrent episodes, stereotyped symptoms, which can be relieved on their own. Between attacks, the patient is normal. Because of this, many patients and their families often do not pay enough attention. In clinical work, we often encounter such a situation: the patient hospitalized at home before the recurrence of several episodes, a few days or because it is the onset of the disease in the evening to the hospital to see the doctor is not convenient and other reasons, will not rush to the clinic in time, only when the patient’s symptoms continue to be unrelieved, i.e., more than a few hours, or even more than a dozen hours before coming to the hospital for medical treatment, to be hospitalized when the patient’s optimal time for treatment has been missed, that is, the formation of infarction (imaging is also confirmed), that is to say, the patient may be able to form an infarct. By the time the patient is hospitalized, the optimal treatment time has already been missed, i.e. infarction has already formed (as confirmed by imaging), which means that the patient may have missed the ultra-early thrombolytic treatment of cerebral infarction. This will undoubtedly have a negative impact on the patient’s prognosis. Therefore, the general public should also have the common sense in this regard, when the above situation occurs, should go to the regular hospital in time in order to get timely and effective treatment. How is transient ischemic attack caused? This is mainly related to cerebral atherosclerosis, the main cause of which is the detachment of thrombus from the walls of the hardened blood vessels. And this embolism is mostly micro-emboli dislodged, blocking small blood vessels, followed by symptoms of neurological deficits. When the microemboli are washed away with the blood flow upon impact, the symptoms of neurological deficit disappear again. In addition, it can also be triggered by hemodynamic disorders or vasospasm. The outcome: one is recurrent without thrombus formation, and the other is recurrent with thrombus formation. Transient ischemic attack may be the first symptom or precursor of cerebral infarction when the former is a microembolism and the latter may have a stenosis of the large intracranial vessels. How to treat transient ischemic attack when it occurs? Firstly, the risk factors of cerebrovascular disease should be treated: such as lowering blood pressure, regulating lipids, lowering sugar, etc. Secondly, anti-platelet aggregation, anti-coagulation, blood circulation and blood stasis activating traditional Chinese medicine should be carried out. Thirdly, when the degree of intracranial vascular stenosis is found to be more than 70%, surgical treatment can be chosen. How should we prevent this disease? First of all, we should know our blood pressure, blood lipid, blood sugar and other conditions, i.e. the risk factors of cerebrovascular disease, so as to achieve early prevention and early treatment, and secondly, we should know whether there is the stenosis of intracranial arteries or atherosclerotic plaques through the carotid ultrasonography and assess the degree of vascular sclerosis, so as to carry out the interventive treatment at an early stage, which is undoubtedly of great significance to the transient ischemic attack.