Short answer · Medically reviewed summary · Last updated: 2026-05-08
Omphalocele is a rare congenital abdominal wall defect with an estimated global incidence of approximately 1 in 4,000 to 1 in 7,000 live births. While it is classified as a rare condition, the true prevalence is difficult to capture due to significant variations in prenatal diagnosis, elective pregnancy terminations, and associated genetic syndromes. What is the estimated incidence and prevalence of Omphalocele? The incidence of Omphalocele is generally cited at roughly 2 to 3 per 10,000 live births, according to data from the NIH Genetic and Rare Diseases Information Center (GARD).
What is the prevalence of Omphalocele?
Prevalence of Omphalocele: how many people are affected worldwide, differences by sex and region, with sources.
Omphalocele is a rare congenital abdominal wall defect with an estimated global incidence of approximately 1 in 4,000 to 1 in 7,000 live births. While it is classified as a rare condition, the true prevalence is difficult to capture due to significant variations in prenatal diagnosis, elective pregnancy terminations, and associated genetic syndromes.
What is the estimated incidence and prevalence of Omphalocele?
The incidence of Omphalocele is generally cited at roughly 2 to 3 per 10,000 live births, according to data from the NIH Genetic and Rare Diseases Information Center (GARD). Because Omphalocele is a structural defect identified at birth or via prenatal ultrasound, it is strictly a pediatric condition, though survivors transition into adult care. True prevalence is often higher than reported incidence because many cases are associated with severe chromosomal abnormalities that may lead to pregnancy loss.
Are there demographic or gender differences in Omphalocele cases?
Clinical data suggests that Omphalocele affects males slightly more frequently than females. Furthermore, there is no strong evidence of geographic or ethnic "clusters" for Omphalocele, though its occurrence is often linked to maternal age and the presence of underlying syndromes like Beckwith-Wiedemann syndrome or trisomy 18. At DiseaseMaps.org, we have observed 4 community members sharing their experiences with Omphalocele, providing a unique, real-world perspective on the diverse outcomes of this condition.
What challenges impact the accuracy of Omphalocele data?
Accurate tracking of Omphalocele is hindered by several factors:
- Prenatal Outcomes: High rates of pregnancy termination following early prenatal diagnosis often exclude these cases from live-birth statistics.
- Classification Complexity: Differentiating between "giant" omphaloceles and smaller defects can lead to inconsistent reporting in medical registries.
- Underdiagnosis: While major cases are obvious, smaller defects may occasionally be misclassified as umbilical hernias in less specialized settings.
Next steps
- Consult with a pediatric surgeon or a maternal-fetal medicine specialist for personalized prognostic information.
- Connect with the DiseaseMaps.org community to share experiences with other families affected by Omphalocele.
- Review resources from the SOFT (Support Organization for Trisomy 18, 13, and Related Disorders) if the diagnosis is linked to a genetic syndrome.
Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment.
References
- NIH Genetic and Rare Diseases Information Center (GARD): Omphalocele overview.
- Orphanet: Rare disease database entry for congenital abdominal wall defects.
- PubMed/NCBI: Epidemiological studies on the prevalence of congenital malformations.
- OMIM (Online Mendelian Inheritance in Man): Clinical synopsis of associated genetic conditions.
