Lyme disease rash

Illustration of Lyme disease bull's-eye rash

One symptom of Lyme disease is a red rash (called erythema migrans) that looks like a bull's-eye. About half the people infected with Lyme disease develop the rash within 1 to 4 weeks. It occurs at the site of the tick bite and usually gets bigger over time.

Last Updated: September 3, 2008

Medical Review: Kathleen Romito, MD - Family Medicine & Christine Hahn, MD - Epidemiology

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