Achalasia is a rare motor disorder of the esophageal smooth muscle in which the lower esophageal sphincter dose not relax properly with swallowing, and the normal peristalsis of the esophageal body is replaced by abnormal contractions. Achalasia has been described as party of several distinct multisystem syndromes suggesting a generalized neuromuscular disorder as the mode of origin. An 11-year-old female was admitted because of paresthesia on the trunk and both legs for 5 days. She had suffered from chest discomfort, dysphagia, postprandial vomiting, and weight loss for 6 months. She was diagnosed as having achalasia by means of the esophagography and esophageal manometry. Her chest discomfort, dysphagia and vomiting much improved after the endoscopic balloon dilatation. The authors present an 11-year-old female with achalasia complained of paresthesia and sucessfully managed by the balloon dilatation.