Epileptic tongue biting may cause death, the causes include neurogenic shock, blood loss, and aspiration. 1. Neurogenic shock: mainly in the process of biting the tongue will produce great pain, and lead to neurogenic shock, if the treatment is not timely, the patient may suffer from circulatory failure and die. 2. Blood loss: after the epileptic patient bites off his tongue, there may be a large amount of blood loss, resulting in hemorrhagic shock. If the blood volume is not replenished in time, the patient may die. 3. Aspiration: When an epileptic bites his tongue, resulting in bleeding, the patient may unconsciously aspirate blood, leading to airway obstruction, which can lead to death. Patients with epilepsy should take antiepileptic drugs at regular intervals as prescribed by the doctor for a long period of time and undergo regular outpatient review. In the event of a severe seizure with bleeding from biting the tongue, emergency treatment is required.