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Trait

Perianal rash

Clinical name: Perianal dermatitis

The presence of a rash (change of color and texture) of the perianal skin.

HPO HP:0011131

Summary

Body system
Abnormality of the digestive system

2 genes linked to Perianal rash

Changes in these genes cause rare conditions in which Perianal rash is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.

GeneHow often it is seenConditions
ADAM17ADAM metallopeptidase domain 17Often (30–79%)In 1 condition
DEF6DEF6 guanine nucleotide exchange factorOften (30–79%)In 1 condition

How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.

Broader traits

Abnormal anus morphology

Where this comes from

  • The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
  • Data release 2026.10.16-c6eea6bf.

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