Short answer · Medically reviewed summary · Last updated: 2026-05-08

Achalasia is not a contagious disease and cannot be spread through contact, saliva, or any other means. It is a chronic digestive disorder caused by the degeneration of nerve cells in the esophagus, and there is absolutely no risk of transmission to family members, caregivers, or friends. What is the actual cause of Achalasia? Achalasia is a primary esophageal motility disorder characterized by the loss of inhibitory ganglion cells in the myenteric plexus of the esophagus.

6 people with Achalasia have shared their first-person experience on this question at DiseaseMaps.

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Is Achalasia contagious?

Is Achalasia contagious? Clear, medically reviewed answer on transmission, with sources.

Is Achalasia contagious?

Achalasia is not a contagious disease and cannot be spread through contact, saliva, or any other means. It is a chronic digestive disorder caused by the degeneration of nerve cells in the esophagus, and there is absolutely no risk of transmission to family members, caregivers, or friends.



What is the actual cause of Achalasia?


Achalasia is a primary esophageal motility disorder characterized by the loss of inhibitory ganglion cells in the myenteric plexus of the esophagus. This leads to the failure of the lower esophageal sphincter to relax during swallowing and a loss of peristalsis. While the exact trigger remains a subject of ongoing research, current medical consensus points toward a combination of factors, including autoimmune responses, viral triggers, and a potential genetic predisposition.



Why is there confusion regarding contagion?


Because some theories suggest that a viral infection (such as herpes simplex or measles) might trigger the immune system to attack esophageal nerve cells in susceptible individuals, some people mistakenly believe Achalasia is infectious. However, the virus acts only as an initial environmental trigger in a predisposed person; it does not mean the person with Achalasia is "shedding" a virus or that the condition is transmissible to others.



Are there environmental or systemic triggers?


While Achalasia is not caused by poor hygiene or lifestyle, researchers are investigating why certain environmental factors might influence its development. Factors currently under investigation include:



  • Autoimmune reaction: The body’s immune system mistakenly attacks its own nerve cells.

  • Viral exposure: Exposure to common viruses in genetically susceptible individuals.

  • Neurodegenerative processes: The gradual loss of specific neurons in the esophageal wall.



Addressing stigma and social concerns


Living with Achalasia can be isolating, especially when others do not understand the condition. It is important to emphasize that Achalasia poses zero risk to those around you. With 319 members in the DiseaseMaps community currently managing Achalasia, you are not alone in navigating the social and physical challenges of this digestive disorder.



Next steps



  • Consult a gastroenterologist specializing in esophageal motility disorders for personalized management.

  • Join the Achalasia community at DiseaseMaps.org to connect with others who understand the daily experience of living with this condition.

  • Educate family and friends by sharing verified resources to dispel myths about contagion.



Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician regarding any medical condition.



References



  • NIH Genetic and Rare Diseases Information Center (GARD): Achalasia.

  • Orphanet: Achalasia (ORPHA:1003).

  • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK): Esophageal Motility Disorders.

  • OMIM (Online Mendelian Inheritance in Man): Achalasia, Esophageal (Entry #200400).

Author: DiseaseMaps Editorial Team
Reviewed against authoritative medical sources (NIH GARD, Orphanet, OMIM)
Last updated: 2026-05-08
Sources cited: NIH Genetic and Rare Diseases Information Center (GARD): Achalasia. · Orphanet: Achalasia (ORPHA:1003). · National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK): Esophageal Motility Disorders. · OMIM (Online Mendelian Inheritance in Man): Achalasia, Esophageal (Entry #200400). · WHO
Medical disclaimer: This information does not substitute professional medical advice. Always consult your doctor before making health decisions.
Source: DiseaseMaps.org
7 answers
You can't 'catch' this disease. It's not sexually transmitted, nor can you catch this through person to person contact.

Posted Sep 20, 2017 by Teresa 3050
No, its not contagious. Western medicine doesn't understand why people are getting achalasia, or why the numbers are increasing.

Posted Oct 27, 2017 by JLMcK 5550
No. Nothing indicates this.

Posted Jul 14, 2020 by Gina Manion 2500
No it's not, because it's not viral infection or bacterial infection or not an sexually transmitted disease. Its a disorder.

Posted Oct 21, 2021 by Abigail 600
Not at all you can live with a person who has achalasia along without getting infected

Posted Aug 16, 2022 by [email protected] 2500
Translated from spanish Improve translation
IT IS NOT CONTAGIOUS, AS IT IS DUE TO NERVE DAMAGE IN THE LOWER SPHINCTER OBSTRUCTION OF THE ESOPHAGUS.

Posted Aug 22, 2017 by Lorena 2250

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I started with strong chest pains in January 2016, like a heart attack. My doctor gave me Gaviscon Advance which helped me (and still helps) so I proceeded with my life. Then the first difficulties in swallowing. I needed to eat so slowly trying to ...
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It all started with the hickups, for me that was quite strange i never hickcupped. We all though it quite funny at the time. "You eat too fast and dont talk while eating", mum said. At first it was only now and then, it became more frequent until eve...
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GROWING UP I GOT INTO EXTREME SPORTS. MAINLY BMX AND SKATEBOARDING. I LOVED TO JUMP. RAMPS, CURBS,  EVEN OVER PEOPLE. ALL I WANTED TO DO WAS GET AIR. AFTER SCHOOL IT WAS HOME WORK(SOMETIMES) THEN TO BIKE. ONE WEEKEND WE WENT TO VISIT FAMILY. MY COUS...
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It all began the day before I was moving to Australia, April 2000. I woke up the night before my flight with what I initially thought was heartburn (common mistake). Grabbed some cold water and that it was it - or so I thought. In Sydney, my first da...
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Always had issues with food, to which I was labelled fussy. Suffered until I was 28 and had a doctor who could see that something was not right and made me have test after test to get to the bottom of it. Finally got a diagnosis just as I was about...

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