Rare diseases · Sign or symptom
Conjunctival hyperemia
HP:0030953
What it means
Dilatation of the blood vessels of the conjunctiva leading to a red appearance of the sclera.
Rare diseases that can present with this21
Very common80–99%
3Common30–79%
14- Atopic keratoconjunctivitis
- Classic progressive supranuclear palsy syndrome
- Herpes simplex virus stromal keratitis
- Kawasaki disease
- Leptospirosis
- Limbal stem cell deficiency
- Marburg hemorrhagic fever
- Nasopalpebral lipoma-coloboma syndrome
- Paroxysmal hemicrania
- Phacoanaphylactic uveitis
- Pili torti-onychodysplasia syndrome
- Plague
- Trichinellosis
- Vogt-Koyanagi-Harada disease
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: Conjunctival hyperaemia · Conjunctival injection · Conjunctival vascular congestion
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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.