How frequently is the cause of acute urticaria (hives) identified?

Updated: Mar 21, 2018
  • Author: Henry K Wong, MD, PhD; Chief Editor: Michael A Kaliner, MD  more...
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Answer

In 50% of patients with acute urticaria, a specific etiology can be identified. Brief episodes of urticaria can be associated temporally with identifiable causes, and the method of exposure (ie, direct contact, oral or IV routes) is usually known.


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