The frequent occurrence of dyspnea in patients with cerebral infarction may be related to the location of cerebral infarction, or it may be caused by the large area of cerebral infarction and the combination of heart failure and other reasons. 1. The location of cerebral infarction: if the infarction is in the brainstem, as the medulla oblongata is the life center of human body, when the infarction occurs in this location, it will directly affect the breathing of human beings, which will cause the patient to have frequent respiratory difficulties. 2. Large area of cerebral infarction: If the area of cerebral infarction is large, which is manifested as large infarction in the cerebellum or cerebral hemisphere, it is easy to cause cerebral edema at the early stage of the disease, and after the swelling of brain tissues, it is easy to make the tissues close to the cerebral infarction to be compressed and dislocated, and it may lead to cerebral hernia to press the medulla oblongata of the patient’s respiratory center, which will result in frequent respiratory difficulties. 3. Combined with heart failure: If patients with cerebral infarction are bedridden for a long time, they are prone to combined with heart failure, which leads to abnormalities in the pumping function of the heart, resulting in reduced or insufficient cardiac output, which makes them prone to frequent dyspnea. Patients with cerebral infarction who have frequent dyspnea may also have other causes, so they should consult a doctor as soon as possible to clarify the causes and be guided by a doctor for treatment.