The patient’s brain suddenly goes blank, it may be transient ischemic attack, most of the symptom duration is 10-15 minutes, rarely more than an hour, it may also be epileptic seizure, details are as follows: 1, transient ischemic attack: the patient has transient ischemic attack, it should be examined cervical vascular ultrasound, head and neck CTA, check the blood lipids, glucose, and blood pressure, to further clarify the cause of the disease. 2, epilepsy Seizure: Considering that the patient has epileptic seizure, EEG should be checked, and if necessary, dynamic EEG should be checked in order to clarify the cause of the seizure. Seizures usually have a short duration of symptoms, and most of them will not last more than five minutes, and when it lasts for more than five minutes, it is called epileptic status quo. You can apply some antiepileptic drugs to treat it, and the general principle of medication is that more than two seizures can be applied.