Researchers are still exploring the causes of esophageal achalasia. Some clinicians believe it is an impairment of the autoimmune system, while others think it is a nervous system disorder that degrades nerves in the chest that affect peristaltic movements. Still others blame a genetic link, but evidence supporting that theory is lacking at this time. While the exact causes are still unknown, certain factors increase the likelihood of developing esophageal achalasia.
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