Rare diseases · Sign or symptom
Dermatographic urticaria
Skin writing
HP:0011971
What it means
An exaggerated whealing tendency when the skin is stroked, that is, formation of red, itchy bumps and lines on the skin as a result of pressure on the skin (for instance, stroking the skin with a pen or tongue depressor).
Rare diseases that can present with this6
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: Dermatographism · Dermographism
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.