Lyme Disease and Body Odor: Exploring Potential Links

There is no direct scientific evidence that Lyme disease (Borrelia burgdorferi infection) causes a characteristic change in body odor. However, several indirect mechanisms could contribute to perceived odor alterations:

• Antibiotic effects: Doxycycline, amoxicillin, cefuroxime alter gut and skin microbiome, potentially changing volatile organic compound profiles.
• Increased sweating: Autonomic dysfunction, low-grade fevers, or Jarisch-Herxheimer reactions may increase perspiration.
• Co-infections: Babesia, Anaplasma or other tick-borne pathogens may have distinct metabolic effects.
• Medication side effects: Certain drugs cause metallic taste or altered body odor (e.g., metronidazole).
• Nutritional changes: Appetite loss, dietary shifts during illness.

Clinical Approach

If body odor change is persistent and bothersome:

1. Rule out common causes: hygiene, hyperhidrosis, bromhidrosis, hormonal (thyroid, diabetes), diet (garlic, cruciferous), medications.
2. Discuss with your treating clinician—adjust antibiotic regimen if suspect drug-related.
3. Consider dermatology referral for bromhidrosis evaluation.

Focus remains on completing appropriate antibiotic therapy for Lyme disease; odor changes are typically transient and resolve post-treatment.