Short answer · Medically reviewed summary · Last updated: 2026-05-08
Tracheobronchomalacia is a condition characterized by excessive flaccidity of the tracheal and bronchial walls, leading to airway collapse during breathing. While exact global prevalence remains unknown due to frequent underdiagnosis, it is recognized as a rare to uncommon condition that affects both children and adults, with clinical estimates often citing a prevalence of approximately 1 in 2,000 to 1 in 15,000 depending on the population studied. Is Tracheobronchomalacia considered a rare disease? While Tracheobronchomalacia is often classified as a rare disease, its true prevalence is difficult to ascertain.
What is the prevalence of Tracheobronchomalacia?
Prevalence of Tracheobronchomalacia: how many people are affected worldwide, differences by sex and region, with sources.
Tracheobronchomalacia is a condition characterized by excessive flaccidity of the tracheal and bronchial walls, leading to airway collapse during breathing. While exact global prevalence remains unknown due to frequent underdiagnosis, it is recognized as a rare to uncommon condition that affects both children and adults, with clinical estimates often citing a prevalence of approximately 1 in 2,000 to 1 in 15,000 depending on the population studied.
Is Tracheobronchomalacia considered a rare disease?
While Tracheobronchomalacia is often classified as a rare disease, its true prevalence is difficult to ascertain. Many cases are likely missed, misdiagnosed as asthma or chronic obstructive pulmonary disease (COPD), or go undetected in mild forms. Data from the DiseaseMaps.org community, which includes 41 members living with Tracheobronchomalacia, highlights the diagnostic journey often faced by patients before receiving an accurate clinical assessment.
What are the demographic patterns of Tracheobronchomalacia?
The presentation of Tracheobronchomalacia varies significantly by age and underlying cause:
- Pediatric onset: Often congenital, related to developmental issues or vascular rings.
- Adult onset: Frequently acquired due to chronic inflammation, trauma, or prolonged mechanical ventilation.
- Gender distribution: There is no strong evidence of significant sexual dimorphism, though some studies suggest a slightly higher clinical presentation in males depending on the associated comorbidities.
Why is accurate data on Tracheobronchomalacia limited?
Determining the precise incidence of Tracheobronchomalacia is challenging because it is a structural airway abnormality rather than a single genetic syndrome. Because symptoms often overlap with common respiratory conditions, many individuals live with Tracheobronchomalacia without ever undergoing the dynamic airway imaging (such as expiratory CT or bronchoscopy) required for a definitive diagnosis.
Next steps
- Consult a pulmonologist or an otolaryngologist specializing in airway disorders to discuss diagnostic imaging.
- Join the Tracheobronchomalacia community on DiseaseMaps.org to connect with others sharing their experiences.
- Keep a detailed log of your respiratory symptoms and triggers to assist your physician in the evaluation process.
Medical disclaimer: This information is for educational purposes and does not replace professional medical advice, diagnosis, or treatment.
References
- NIH Genetic and Rare Diseases Information Center (GARD): Tracheobronchomalacia overview.
- Orphanet: Rare disease database entries for structural airway abnormalities.
- PubMed: Clinical reviews on the prevalence of tracheomalacia in pediatric and adult populations.
