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Lyme Disease Rash

Picture of Lyme disease "bull's-eye" rash

One symptom of Lyme disease is a red rash (called erythema migrans). The rash usually starts as a small red area and then expands over several days. The rash occurs at the site of the tick bite and usually gets bigger over time. Sometimes the rash clears in the center, so that it looks like a bull's-eye.

About half the people infected with Lyme disease develop the rash within 4 weeks. The rash usually isn't painful or itchy. It fades within 4 weeks, even without treatment for Lyme disease.

Current as of: July 1, 2021

Author: Healthwise Staff
Medical Review:
E. Gregory Thompson MD - Internal Medicine
Adam Husney MD - Family Medicine
Christine Hahn MD - Epidemiology
W. David Colby IV MSc, MD, FRCPC - Infectious Disease