Patient Self-Diagnosed Rare Burp-Failure Syndrome
A case report highlights challenges in diagnosing retrograde cricopharyngeus dysfunction, a condition hindering the ability to belch.
Updated on Sept. 25, 2026 in Autism

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In April 2026, researchers published a case report in the journal Cureus detailing how a patient with Tourette syndrome identified his own retrograde cricopharyngeus dysfunction (R-CPD) after years of medical testing failed to explain his symptoms. The condition prevents the cricopharyngeus muscle from relaxing, which inhibits the ability to belch.
Why it matters
Patients with R-CPD often experience symptoms like a swollen belly, gurgling throat noises, and excessive gas, yet many struggle to secure an accurate diagnosis. Identifying this condition can be difficult because the syndrome was only officially named and codified in 2019.
A 2026 review found that 55% of R-CPD patients had the condition since childhood, while a 2020 follow-up study of 200 patients showed that 99.5% gained the ability to burp following treatment. This evidence base consists primarily of patient case series and observational studies.
The players
Cureus
A peer-reviewed medical journal that publishes original research and case reports across various health disciplines.
Johns Hopkins
A leading academic health institution that conducts ongoing research into the diagnosis and management of R-CPD.
University of Southern California
An academic institution that has reported on potential complications and side effects associated with botulinum toxin treatments.
The details
R-CPD occurs when the cricopharyngeus muscle fails to relax to allow air to escape from the upper esophagus. Treatment involves injecting botulinum toxin into this muscle to force relaxation, which can restore the ability to belch. Clinicians must be cautious, as one report noted a patient who developed difficulty swallowing after receiving two 40-unit botulinum toxin injections.
Timeline
1987: Inability to belch was first described in medical literature.
2019: Retrograde cricopharyngeus dysfunction was officially named and codified.
2020: A follow-up study of 200 patients was published.
2024: A review on R-CPD diagnosis delays was published by Johns Hopkins.
April 2026: An atypical case report was published in the journal Cureus.
Health Landscape
Retrograde cricopharyngeus dysfunction has only recently gained clinical recognition, with research efforts like those at the Johns Hopkins R-CPD research program working to bridge the gap between patient experience and medical understanding. This case reflects a growing trend of patient-led identification in rare conditions that have historically lacked established diagnostic protocols.
If you experience chronic symptoms such as a swollen belly, gurgling throat noises, or an inability to belch, these may be worth discussing with a specialist familiar with current research on retrograde cricopharyngeus dysfunction. Seek a physician who can evaluate whether botulinum toxin therapy is appropriate for your specific clinical presentation.
The takeaway
R-CPD is a newly codified condition that frequently causes years of diagnostic delay due to a lack of awareness among general practitioners. Individuals struggling with persistent gurgling and an inability to burp may want to track these symptoms and consult with an otolaryngologist or gastroenterologist.
Further reading
For more information on navigating rare health conditions, see our Autism resources.
Source note: This article includes information reported by Medical Daily.
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