Rare diseases · Sign or symptom
Abnormal upper to lower segment ratio
HP:0012772
What it means
A deviation from normal of the relation between the upper and the lower segment of the body, where the lower segment is defined as the length between the top of pubic symphysis to floor, and the upper segment is defined as the top of head to top of pubic symphysis.
Part of the broader category
Abnormal upper to lower segment ratio
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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.