Preventive measures for transient cerebral ischemia need to target high-risk factors, as follows: 1, elderly patients: patients over 60 years of age can consult neurology or cerebrovascular specialists to screen the cerebral arteries for blood supply to observe whether there is vascular stenosis; 2, patients with high blood pressure: regular carotid ultrasound, cranial magnetic resonance or cerebral blood flow test TCD, to observe the existence of vascular stenosis; 3, diabetes mellitus or patients with dyslipidemia: regular cerebral arteries related to the blood supply to observe the existence of stenosis and plaque formation; 4, patients with atrial fibrillation: early treatment of atrial fibrillation, and can be a long term anticoagulant medication.