Dysphagia is a common symptom in gastroenterology. Patients usually have difficulty swallowing, the first choice is to consider diseases of the esophagus or stomach, the most common disease is esophageal cancer or cardia cancer. Therefore, when dysphagia occurs, most patients choose to go to the gastroenterology department for consultation. However, in clinical practice, dysphagia is also a common symptom in neurology. It is mostly seen in patients with cerebral infarction. The onset is mostly in the elderly. The onset is more sudden, and some of them are accompanied by nausea, vomiting, choking and coughing of drinking water, and rotation of vision. In severe cases, the patient simply cannot eat. Food cannot be swallowed in the mouth. This condition is most often seen in infarcts of the brainstem. It is due to the abnormal function of the linguopharyngeal nerve and vagus nerve after brainstem infarction, which cannot command the movement of swallowing muscles in the pharynx and cannot complete the swallowing action. In this case, you need to consult a doctor as soon as possible and actively treat the brain infarction. At the same time, rehabilitation training of swallowing function can be done. Eating can be improved by choosing more viscous food or adding thickening agents to food to improve swallowing difficulties. Therefore, when encountering patients with dysphagia in the clinic, it is necessary to first take a detailed medical history, admission with chronic course, no dizziness, choking and coughing with water, etc., and mostly consider diseases of the digestive system itself. The common ones are esophagitis, esophageal or cardia tumor, etc. The diagnosis can be made by electrogastroscopy. However, if the onset is sudden, accompanied by dizziness, nausea, vomiting, rotation of vision, weakness or numbness of the lateral limbs, it is necessary to exclude ischemic diseases of the brainstem. In this case, it is best to have a cranial MRI to clarify the diagnosis.