The most serious complications of cerebral infarction, in general, are as follows: 1, cerebral infarction recurrence, during hospitalization or after hospitalization, although after regular active treatment, but the symptoms are still progressing, is a very serious situation; 2, lung infection pneumonia, also nosocomial infections, very common; 3, the patient can’t eat to eat, medically known as the ball paralysis, the patient has to be under the nasal feeding, through the nasal feeding to ensure nutrition, or can not be able to ensure nutrition, not to mention recovery; 4, stress ulcers. Although cerebral infarction, but the digestive tract will have bleeding, a small number of patients will have; 5, brain hernia, for large cerebral infarction, the peak of edema, the midline will be displaced, there will be compression, some will be herniated, and individual patients will have a life-threatening situation. If after active dehydration, or even cranial decompression, some patients can be saved, life can be maintained; 6, there are also urinary tract infections, bedsores and so on are common complications. But if the complications after comprehensive treatment, active rehabilitation, there are many complications get timely treatment and prevention, will not cause too much impact on life.