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It is possible that the main title of the report Achalasia is not the name you expected.

Disorder Subdivisions

  • None

General Discussion

Achalasia is a rare disorder of the esophagus, the tube that carries food from the throat to the stomach. It is characterized by enlargement of the esophagus, impaired ability to push food down toward the stomach (peristalsis), and failure of the ring-shaped muscle at the bottom of the esophagus, the lower esophageal sphincter (LES), to relax. It is the contraction and relaxation of the sphincter that moves food through the tube.

Supporting Organizations


3 St. Andrews Place
London, NW1 4LB
United Kingdom
Tel: 2074860341
Fax: 2072242012

Gastroparesis & Dysmotilities Association

5520 Dalhart Hill N.W.
Calgary, AB, T3A 1S9
Tel: 4032473215

Genetic and Rare Diseases (GARD) Information Center

PO Box 8126
Gaithersburg, MD 20898-8126
Tel: (301)251-4925
Fax: (301)251-4911
Tel: (888)205-2311

March of Dimes

1275 Mamaroneck Avenue
White Plains, NY 10605
Tel: (914)997-4488
Fax: (914)997-4763
Email: or
Website: and

Martin Mueller IV Achalasia Awareness Foundation, Inc.

111 Hampton Meadows Dr
Bonaire, GA 30105
Tel: 478-293-1822

NIH/National Institute of Diabetes, Digestive & Kidney Diseases

Office of Communications & Public Liaison
Bldg 31, Rm 9A06
Bethesda, MD 20892-2560
Tel: (301)496-3583

Oley Foundation

43 New Scotland Ave., MC-28
Albany Medical Center
Albany, NY 12208-3478
Tel: (518)262-5079
Fax: (518)262-5528
Tel: (800)776-6539

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). For a full-text version of this report, go to and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report.

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

Last Updated:  6/9/2015
Copyright  2007 National Organization for Rare Disorders, Inc.