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Published on: 7/15/2026

What are the symptoms of Post-Treatment Lyme Disease Syndrome (PTLDS)?

Yoshinori Abe

Reviewed by Yoshinori Abe, MD

Internal Medicine

Post-Treatment Lyme Disease Syndrome (PTLDS) is a condition that can develop after standard antibiotic treatment for Lyme disease. Common PTLDS symptoms include persistent fatigue, joint and muscle pain, and cognitive difficulties such as brain fog or trouble concentrating. These symptoms can last for months and significantly impact daily life.

Because PTLDS symptoms overlap with many other conditions, identifying the cause early is key to getting the right care. Take a free, instant, online symptom check to better understand what may be behind your symptoms and confidently navigate your next steps.

Reviewed for medical accuracy: 07/15/2026

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Important Next Steps

Learn if PTLDS symptoms need careDiscover likely causes of PTLDS symptomsSee if your symptoms suggest PTLDSFind OTC relief for PTLDS symptomsFind a doctor for PTLDS careDiscover home remedies for PTLDS symptomsFind out if PTLDS is serious

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Explanation

Post-Treatment Lyme Disease Syndrome (PTLDS) occurs after someone has been treated for Lyme disease, but still experiences symptoms. These symptoms can last for months or even years.

Common Symptoms of PTLDS Include:

  1. Fatigue: People often feel very tired and have low energy levels.
  2. Pain: There can be ongoing aches in muscles and joints.
  3. Cognitive Issues: Some people have trouble thinking clearly, concentrating, or remembering things.

These symptoms can vary in how severe they are and can affect daily life. It is important to talk to a healthcare provider if you think you have PTLDS, so they can help manage these symptoms. If you're experiencing persistent fatigue, pain, or cognitive issues, you can use Ubie's free AI symptom checker to better understand your symptoms and get personalized guidance on next steps.

(References)

  • Wester KE, Nwokeabia BC, Hassan R, Dunphy T, Osondu M, Wonders C, & Khaja M. (2024). Exploring the Mechanisms of Post-treatment Lyme Disease .... Cureus, 39161484.

  • Aucott JN. (2015). Posttreatment Lyme disease syndrome. Infectious disease clinics of North America, 25999226.

  • Bai NA, & Richardson CS. (2023). Posttreatment Lyme disease syndrome and myalgic .... Chronic diseases and translational medicine, 37711861.

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