Rare diseases · Sign or symptom
Increased skull ossification
HP:0004330
What it means
An increase in the magnitude or amount of ossification of the skull.
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: Hyperossification of skull · Hyperostosis of skull · Increased calcification of skull · Increased Mineralization of skull · Sclerosis of bones of skull · Sclerosis of skull
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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.