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Home / Lyme Disease Awareness / Lyme Disease Rash Presentations May Not Be What You Think

Lyme Disease Rash Presentations May Not Be What You Think

April 21, 2022 By Johns Hopkins Lyme Disease Research Center

RASH MISCONCEPTIONS SET STRAIGHT

Lyme disease rash is:

  • Sometimes but not usually a ring within a ring Bull’s-eye rash appearance
  • Often mistaken for a spider bite but is not a spider bite
  • Not always present. Not everyone has a rash.

Characteristics of Lyme disease rash:

  • Large expanding red round rash
  • Grows to greater than 2” in diameter over days or weeks
  • Bull’s eye appearance of rash only appears in the minority of Lyme disease cases
  • Uniformly red in the majority of cases

A leading cause of misdiagnosis is the failure to recognize the Lyme disease rash, when present.

HELP US EDUCATE OTHERS

Please share this information on rashes with your family, friends and healthcare practitioners.

We strive for broader representation of rash photos for educational purposes. If you have pictures of a Lyme disease rash on a darker-skinned individual please call us at 410-616-7596.

Thank you!

Research in our Center aims to improve the recognition of a Lyme disease rash:

  • Our Center is working on AI methods to improve early diagnosis of the Lyme disease rash.
  • Research shows the presenting characteristics of the Lyme disease rash vary by age, sex, duration, and body location.
  • A case study reveals that the Lyme disease rash may be harder to discern in people of color.
  • Rash poster

Available blood tests are antibody-based for Lyme disease and do not accurately diagnose Lyme disease in the first few weeks of infection. False negative tests are a problem in acute Lyme disease. Therefore, early Lyme disease is a clinical diagnosis. Recognizing signs, such as the rash, and symptoms can be vital to receiving appropriate early treatment.

Suspicious Rash or Flu-Like Symptoms?

If you have a suspicious expanding red circular rash and/or flu-like symptoms such as fever, achiness, extreme fatigue, severe headache or neckache, this could be acute Lyme disease. Please seek medical care immediately.

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Filed Under: Lyme Disease Awareness Tagged With: Johns Hopkins 2021 Lyme Disease Awareness Campaign

Johns Hopkins Lyme Disease Research Center

Johns Hopkins Lyme Disease Research Center

The Johns Hopkins Lyme Disease Research Center is focused on patient-based research in all manifestations of Lyme disease. Our goal is to translate our pioneering research into improved patient care, education, and health outcomes.

Use of This Site

All information contained within the Johns Hopkins Lyme Disease Research Center website is intended for educational purposes only. Physicians and other health care professionals are encouraged to consult other sources and confirm the information contained within this site. Consumers should never disregard medical advice or delay in seeking it because of something they may have read on this website.

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