Frequently choking on saliva may be caused by more saliva secretion, brain center diseases and chronic laryngitis. 1. Higher saliva secretion: If there is more saliva secretion, there is more saliva in the mouth, which can easily irritate the throat and epiglottis, thus causing choking and coughing. 2. Diseases of the brain center: If there are diseases of the brain center such as cerebral hemorrhage and cerebral infarction, due to the dysfunction of the superior laryngeal nerve and the recurrent laryngeal nerve, there will be a lack of coordination of the muscles and nerves in swallowing, which makes it easy to be choked by saliva. 3. Chronic pharyngolaryngitis: some people often choked on saliva may have chronic pharyngolaryngitis, because the patient’s saliva and throat secretion is more, so it is easy to swallow saliva choking situation. It is recommended to go to the relevant departments of professional hospitals to find out the specific causes, and then targeted treatment to avoid delay.