7/4/23, 12:45 AM Urticaria Pathway Feedback Search Clinical Topics Home Findings Urticaria Urticaria More common causes Scabies Strongyloidiasis Hepatitis B virus infection Cholinergic urticaria Snake bite Solar urticaria Contact urticaria Anaphylactoid reaction Less common causes Anaphylaxis Paroxysmal cold hemoglobinuria Insect bite Complications of blood transfusion Vasculitis Jellyfish sting C1 esterase inhibitor deficiency Chronic eosinophilic leukemia Systemic mastocytosis https://web.pathway.md/findings/recsiSxWA1BqOzwlS 1/2 7/4/23, 12:45 AM Urticaria Pathway Uncommon causes Acquired angioedema Symptomatic dermatographism Familial cold urticaria Vibratory urticaria https://web.pathway.md/findings/recsiSxWA1BqOzwlS 2/2