Rare diseases · Sign or symptom

Abnormal sexual behavior

Inappropriate sexual behavior

HP:0008768

What it means

A deviation of sexual behaviors from the personal norms of the individual in the context of socially and culturally recognized patterns of human sexual behaviors.

Rare diseases that can present with this2

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: Inappropriate sexual behaviour

Abnormal sexual behavior

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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.