Brain stem damage, pneumonia, cardiac insufficiency and other causes are common in patients with cerebral infarction. 1. Brain stem damage: patients with cerebral infarction may suffer from brain stem damage, which mainly affects the center of life. Brain stem damage may lead to accelerated respiration, accelerated heartbeat and elevated blood pressure, which may cause the symptom of wheezing, or even respiratory arrest. 2. Pneumonia: after cerebral infarction, there may be sequelae of limb paralysis and difficulty in swallowing, such as improper care, prolonged limb paralysis resulting in inability to get out of bed, respiratory secretions and sputum are not easy to be discharged, resulting in droplet pneumonia, which will show symptoms of coughing up sputum and wheezing badly. 3. Cardiac insufficiency: If patients with cerebral infarction are combined with high blood pressure and coronary heart disease, high blood pressure and coronary heart disease are not well controlled, or coronary heart disease reoccurs, which can lead to cardiac insufficiency, and thus shortness of breath symptoms can appear. This symptom alone is not enough to determine the disease, do not rule out other factors caused by the patient is recommended to consult a doctor in a timely manner, by the doctor to clarify the cause, to give targeted treatment.