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Dysphagia is a medical condition which describes the difficulty in swallowing solids or liquids. A person suffering from dysphagia may either have problems forming a bolus (the mass of food to be swallowed) in the mouth or have difficulty moving the bolus from the mouth to the stomach. Swallowing is a complex process involving various muscles, glands and nerves. The swallowing process consists of three distinct phases, each controlled differently. Dysphagia can originate from a disorder in any one or more o
What causes dysphagia? Dysphagia is often caused by disease or damage to the nervous system, spasms of the muscles in the esophagus or other conditions that physically block the esophagus, or cause it to narrow. Dysphagia can occur with illness such as stroke, head and neck cancer, a tracheostomy (surgically created hole in the windpipe), Alzheimer’s disease and Parkinson’s disease. In older people, difficulty swallowing solids or liquids may occur due to changes in neural and muscular function that develop
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