**1. Introduction**

Dysphagia is difficulty swallowing. Dysphagia is common in patients with neurological disorders. It can result from damage to the central or peripheral nervous system, as well as muscle and neuromuscular junction disorders. Neurogenic dysphagia often leads to serious complications including pulmonary aspiration, dehydration, and malnutrition. Dysphagia negatively affects the course of the disease and its outcome. Ethinenias can usually be prevented if dysphagia is detected early and treated correctly. The most common cause of neurogenic dysphagia, however, is stroke [1].
