HealthInfo Canterbury
Angioedema is a swelling caused by blood vessels leaking fluid into the tissues. It normally happens on the face, lips, and tongue and can happen with hives (urticaria). Angioedema is not usually dangerous, unless the swelling makes it difficult to breathe.
If you or someone else has angioedema and can't breathe properly, it may be a sign of anaphylaxis. Follow the instructions for anaphylaxis.
HealthInfo recommends the following pages
Two-page factsheet covering the symptoms, possible causes, and treatments for angioedema.
Short, basic factsheet about urticaria and angioedema.
Detailed information about angioedema, including photos, symptoms, possible causes, and treatments.
Information from respected UK website, Patient.info.
Written by HealthInfo clinical advisers. Updated October 2015.
Review key: HIAOE-22227