Erythema migrans - Definition

January 2017


Definition


Erythema migrans is a cutaneous eruption of a rounded shape. It is present in 80% of Lyme disease cases, a disease caused by a tick bite. This symptom is thus a good indicator of the disease, even if it is not a diagnosis by itself. The red spot, often warm, progressively expands around the bitten area, forming a ring that can reach up to ten centimeters in diameter. Erythema migrans does not cause itching or pain, despite its impressive appearance.

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Published by Jeff. Latest update on November 26, 2013 at 12:52 PM by Jeff.
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