Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Urticaria pigmentosa
Medically reviewed by Min Clinic Staff | Updated: January 2026
Urticaria pigmentosa: The most common form of mastocytosis consisting of small aggregations of mast cells within characteristic salmon-brown patches of skin which itch when stroked and mat develop a localized hive. The condition occurs occurring primarily in children and clears spontaneously with adolescence.