Rare diseases · Sign or symptom
Cellulitis
Bacterial infection of skin
HP:0100658
What it means
A bacterial infection and inflammation of the skin und subcutaneous tissues.
In contrast to impetigo, which is a very superficial skin infection, cellulitis involves both the dermis and the underlying subcutaneous tissue.
In everyday care
Most people with this sign do not have a rare disease — it appears in common conditions far more often. These general reference pages cover the same topic:
Rare diseases that can present with this34
Very common80–99%
6Common30–79%
6Sometimes5–29%
18- Autosomal dominant hyper-IgE syndrome due to STAT3 deficiency
- Autosomal dominant severe congenital neutropenia
- Autosomal non-syndromic agammaglobulinemia
- Bacterial toxic-shock syndrome
- Classical-like Ehlers-Danlos syndrome type 2
- Cyclic neutropenia
- Familial partial lipodystrophy, Dunnigan type
- Felty syndrome
and 10 more in this range
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: Skin infection · Skin infections
Tracking symptoms like this for someone? Eleplan keeps symptoms, diagnoses, medications and every specialist in one plan.
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.