Rare diseases · Sign or symptom
Hyperextensibility of the knee
HP:0010500
What it means
The ability of the knee joint to extend beyond its normal range of motion (the lower leg is moved beyond a straight position with respect to the thigh).
Part of the broader category
Hyperextensibility of the knee
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Start free with EleplanThis 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.