Rare diseases · Sign or symptom

Bladder exstrophy

HP:0002836

What it means

Eversion of the posterior bladder wall through the congenitally absent lower anterior abdominal wall and anterior bladder wall.

Exstrophy of the bladder can be associated with epispadias and bifid penis or in females with bifid clitoris, a bifid uterus, and a septated vagina, each of which should be coded separately.

Rare diseases that can present with this7

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Ectopia vesicae

Bladder exstrophy

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This page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.