Whether a patient with cerebral infarction can fly depends on the specific situation. If the patient is in the acute stage of cerebral infarction, flying is not recommended. If the patient has passed the recovery period and has a previous history of cerebral infarction, all functions are now good and he can fly. The main risks of flying are the following: First, the change of air pressure in the airplane may be relatively large, especially at high altitude, and there will be relatively obvious and violent blood pressure fluctuations when the patient is emotionally tense or other accidents occur, and blood pressure fluctuations are a great risk of inducing cerebrovascular disease. Second, if you fly for a long time, especially for more than five hours or even more than ten hours, the patient is in a seated position and the activity is reduced, there is a possibility that the formation of venous thrombosis in the lower limbs, and the thrombosis will increase the risk of cardiovascular disease and cerebrovascular disease. Therefore, it is generally not recommended that patients with cerebral infarction who have hypertension, diabetes and hyperlipidemia, which are risk factors, take a long flight.