Dysphagia, also called swallowing disorder, is one of the more common clinical dysfunctions. It is generally divided into three categories: functional swallowing disorder, obstructive dysfunction, and paralytic swallowing disorder. Specific details are as follows: 1, functional swallowing disorder, young people and children are easy to see, children with high fever, tonsil suppuration, inflammation of the upper respiratory tract, can not eat, water and rice, which are swallowing disorders, as long as the primary disease control, swallowing disorders will soon be relieved; 2, obstructive swallowing disorders, such as esophagus, cardia long tumor, or digestive tract burns late and narrow; 3, the most common swallowing disorders For paralytic swallowing disorder, i.e. cerebrovascular disease, degenerative disease, stroke, the most common swallowing disorder due to pharyngeal muscle dysfunction in neurology is called paralytic swallowing disorder, and the incidence of these patients is very high in the recovery from stroke. Most of the causes are due to damage to the cortical brainstem bundle and the disruption of the posterior cranial nerves, the linguopharyngeal, vagus and hypoglossal nerves. Some patients have swallowing disorders due to spasm of the cricopharyngeal muscle, which are classified as paralytic swallowing disorders and are the most common swallowing disorders in neurology.