The serious symptoms of cerebral infarction are as follows: 1. Clinically, it is more common to see mainly impaired consciousness, which can appear as delirium, shallow coma, drowsiness and deep coma, mostly in brain stem infarction or large cerebral infarction, and in severe cases, brain herniation is formed, and respiratory arrest and death can occur. 2. 3.It can also be due to large cerebral infarction leading to cerebro-cardiac syndrome, the patient can have severe arrhythmia and coronary heart disease, etc. 4.Severe symptoms of cerebral infarction, mostly large area and brain stem infarction, it is recommended to actively treat cerebral infarction. Dehydration and cranial pressure-lowering drugs can be used, and if necessary, debulking decompression can be performed.