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What are the Most Common Lyme Disease Effects?

Tricia Christensen
By
Updated: May 17, 2024

Lyme disease is a bacterial infection that is transmitted to the body through the bite of certain types of ticks. When discussing the most common Lyme disease effects, it’s important to note each person getting this disease may have slightly different reactions. The presence or lack of presence of a symptom doesn’t indicate wellness or illness, and those who think they have this condition should always seek medical attention.

In early stages, many people are able to suspect they have or will get this condition if they remove a Lyme tick from the body. Those people leaving in areas where the illness is common should have the tick analyzed for presence of Lyme disease. Other people will not notice they got bit by a tick, and for the majority of people the first of the Lyme disease effects is presence of a single bump or rash that sometimes looks like a pimple and may take on a bulls-eye appearance in a few days.

The bulls-eye bump occurs in approximately three-quarters of people with Lyme disease. As the rash grows, it may become very large, with a diameter of as much as a foot (30.48 cm). Some people don’t get a rash this large or prominent.

Other Lyme disease effects may start to emerge, then. People often feel symptoms similar to the flu. They may be tired, some people have a fever, and headaches can occur. These symptoms are often accompanied by strong chilly feelings or overall feelings of achiness.

These early Lyme disease effects may progress if the infection is not properly treated. Flu-like achiness could turn into pain that afflicts one or more joints, creating arthritic symptoms. An initial bulls-eye rash can turn into a rash that spreads more profusely over the body. As the infection gets worse, a plethora of other Lyme disease effects may occur.

Some people develop paralysis symptoms, especially in the face. The infection can migrate to the brain or the spinal cord and cause swelling. Once the brain is affected, folks might experience alterations in mental condition. High incidence of forgetfulness or of strong mood changes and altered perception may occur.

Given the severity of later Lyme disease effects, suspicion that a person has this illness should always be investigated. If a small rash or flu-like symptoms begin to occur a few days after a walk in Lyme tick areas, it’s always wise to mention this to a doctor. Usually it takes a few weeks after infection to confirm a diagnosis of Lyme disease, but getting tested and getting appropriate treatment can avoid late stage complications.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Tricia Christensen
By Tricia Christensen
With a Literature degree from Sonoma State University and years of experience as a WiseGeek contributor, Tricia Christensen is based in Northern California and brings a wealth of knowledge and passion to her writing. Her wide-ranging interests include reading, writing, medicine, art, film, history, politics, ethics, and religion, all of which she incorporates into her informative articles. Tricia is currently working on her first novel.
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Tricia Christensen
Tricia Christensen
With a Literature degree from Sonoma State University and years of experience as a WiseGeek contributor, Tricia...
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