common causes for choking when swallowing
Swallowing problems may be due to gastroesophageal reflux disease in which acid from the stomach moves up to the esophagus. A tumor or trauma to the throat or esophagus can present the symptom of choking on saliva. Excess saliva is also a symptom of some neurological disorders, such as Parkinson's disease and muscular dystrophy, states Mayo Clinic. Stroke sufferers can also have dysphagia and may choke on either food, liquids or saliva.