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The first symptom of Lyme disease in most people is an expanding red skin rash (called erythema migrans or an EM rash). In about a third of people, the rash looks like a bull's eye, with a pale centre area surrounded by a bright red rim. The rash is often accompanied by flu-like symptoms, including:
About 20% of people have virus-like symptoms only (no rash) or have no symptoms at all.
If Lyme disease is not detected and treated while early symptoms are present, or if a person never has early symptoms that trigger the need for treatment, the infection may spread to the heart, the joints, the brain and spinal cord (nervous system), or sites on the skin.
Heart and nervous system problems may develop weeks to months after the initial infection, including:
Damage to the joints, nerves, and brain may develop months to years after a person becomes infected, causing:
Current as ofJuly 30, 2018
Author: Healthwise StaffMedical Review: E. Gregory Thompson, MD - Internal MedicineBrian O'Brien, MD, FRCPC - Internal MedicineAdam Husney, MD - Family MedicineW. David Colby IV, MSc, MD, FRCPC - Infectious Disease
Current as of: July 30, 2018
Author: Healthwise Staff
Medical Review:E. Gregory Thompson, MD - Internal Medicine & Brian O'Brien, MD, FRCPC - Internal Medicine & Adam Husney, MD - Family Medicine & W. David Colby IV, MSc, MD, FRCPC - Infectious Disease
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