The serious symptoms of cerebral infarction are as follows: clinically, it is more common to have consciousness disorder, and delirium, light coma, drowsiness and deep coma can occur, which is mostly seen in brainstem infarction or large cerebral infarction, and in serious cases, brain hernia is formed, and respiratory arrest and death can also occur. Clinically, some patients may have epileptic seizures, most commonly seen in large lobar infarcts, and the patient may have persistent epileptic status, which may also be life-threatening in severe cases. It can also be due to large cerebral infarction leading to cerebro-cardiac syndrome, the patient can develop severe cardiac arrhythmia as well as coronary artery disease and other manifestations. The serious symptoms of cerebral infarction are mostly large and brainstem infarction, and it is recommended to actively treat cerebral infarction. It can be treated with dehydration, drugs for lowering cranial pressure, and if necessary, debridement surgery.