The sudden appearance of syncopal jerk may be caused by cerebral syncope, cardiogenic syncope, epilepsy and other diseases, and the symptoms of syncopal jerk are more dangerous. Therefore, after the occurrence of sudden syncopal convulsions need to be promptly sent to the hospital for treatment, and the patient needs to be protected from other aspects of injury. After the occurrence of sudden fainting convulsions, the patient itself is not conscious, even if there is a little consciousness can not control their own behavior, so the help of the people around is very big. Call 120 in time, hold the patient and let him lie down to prevent falls or injuries, untie the collar and belt, and keep the breathing open. Put soft objects on the joints and do not forcefully compress the limbs to avoid fractures and dislocations. After the convulsions stop, turn the patient’s head to the side and let the secretions in the mouth flow out by themselves to prevent asphyxiation caused by accidental aspiration. Therefore, you need to know about first aid so that you are not scrambling or taking inappropriate actions when someone around you has a sudden fainting spell. In addition, patients with epilepsy or cardiovascular diseases should pay attention to follow medical advice and take their medication on time to minimize the chance of sudden fainting and convulsions.