There is nothing dangerous about yawning in cerebral infarction. Yawning is a manifestation of ischemia and hypoxia in the brain. Cerebral infarction is an acute ischemic cerebrovascular disease, which is caused by various causes of blood supply disorders in the brain, cerebral ischemia and hypoxia, which leads to ischemic necrosis and softening of restricted brain tissue. Patients with cerebral infarction who yawn persistently may indicate cerebral hypoxia, and if necessary, blood gas can be checked and oxygen therapy, including continuous low-flow nasal catheter oxygenation and face mask oxygenation, can be given when blood oxygen saturation is low. In patients with cerebral infarction, when oxygen is required, it is usually seen in large infarcts, which are usually severe, and patients can develop cerebral edema and increased intracranial pressure. When the intracranial pressure is increased, it can endanger the patient’s life. Patients with small cerebral infarcts or mild infarcts, generally without cerebral edema and increased intracranial pressure, and without signs of hypoxia, do not need oxygen therapy.