What is the prevalence of Achalasia?

Achalasia is a rare esophageal motility disorder with an estimated prevalence of approximately 10 per 100,000 individuals worldwide. While incidence rates vary, it is generally considered a rare disease, with roughly 1 new case occurring annually per 100,000 people, though these figures likely underestimate the true burden due to frequent misdiagnosis.

What is the prevalence and incidence of Achalasia?

Achalasia is categorized as a rare disease. Clinical data, such as that provided by Orphanet, suggests the prevalence is roughly 10 cases per 100,000 population. The incidence of Achalasia is estimated at 1 per 100,000 people per year. However, these numbers are widely viewed as conservative because the condition is often misdiagnosed as gastroesophageal reflux disease (GERD), leading to a significant delay in receiving an accurate diagnosis for many patients.

Who is most commonly affected by Achalasia?

Achalasia impacts both men and women, with most clinical studies showing an equal gender distribution. While it can occur at any age, the onset of Achalasia is most frequently observed in adults between the ages of 30 and 60. Although pediatric Achalasia exists, it is significantly less common, representing only about 5% of all cases.

Are there challenges in tracking Achalasia statistics?

Accurate tracking of Achalasia remains difficult for several reasons:

• Diagnostic Delay: Patients often experience symptoms for years before receiving an accurate diagnosis.


• Symptom Overlap: Early signs like regurgitation and chest pain are often attributed to more common digestive issues.


• Reporting Gaps: As a rare condition, Achalasia is not always captured in standard national health registries.


• Community Insight: At DiseaseMaps.org, 319 people with Achalasia have joined our community to share their experiences, providing a vital real-world perspective that complements traditional clinical data.

Next steps

• Consult a gastroenterologist specializing in esophageal motility disorders to discuss diagnostic testing like manometry.


• Join the DiseaseMaps.org community to connect with others living with Achalasia.


• Keep a detailed symptom diary to track the frequency of regurgitation and swallowing difficulties for your physician.

Medical disclaimer: This information is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment.

References

• Orphanet: Rare Disease Database (ORPHA:1052)


• NIH Genetic and Rare Diseases Information Center (GARD)


• National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)


• PubMed: Clinical reviews on esophageal achalasia epidemiology