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Achalasia is a disorder making it difficult for food and drink to pass into the stomach (dysphagia) and causing the backflow of undigested food into the throat.
Achalasia is a disorder making it difficult for food and drink to pass into the stomach (dysphagia) and causing the backflow of undigested food into the throat. The cause of primary achalasia is unknown. Owing to damage to the nerves in the oesophagus, the ring of muscle at the lower end of the oesophagus fails to open properly to let food into the stomach.
Primary achalasia
Secondary achalasia
achalasia, swallowing disorder, dysphagia
CSS offers no guarantee for the accuracy and completeness of the information. The information published is no substitute for professional advice from a doctor or pharmacist.