Can Lyme Disease Cause Erectile Dysfunction (ED) or Loss of Libido?
Sexual symptoms may occur alongside neurologic Lyme symptoms
A pilot study linked Lyme disease with reduced libido
Sexual symptoms in Lyme disease remain understudied
Can Lyme disease cause erectile dysfunction? Possibly. Some people with Lyme disease report erectile dysfunction (ED), lower sex drive, weaker erections, or changes in sexual function. However, research remains limited, and symptoms may also reflect fatigue, neurologic dysfunction, autonomic symptoms, hormonal changes, medications, sleep problems, or other medical conditions.
Sexual symptoms are not discussed as often as fatigue, pain, or brain fog, but they can affect quality of life and relationships. Patients sometimes ask whether these symptoms are related to Lyme disease itself, complications from chronic illness, or other medical issues.
A small pilot study from the Breakspear neuroscience department in the United Kingdom examined whether Lyme disease patients were more likely to report reduced sexual desire compared with controls.
According to the authors, this was the first published study examining loss of libido in Lyme disease patients.
This small pilot study evaluated libido rather than erectile dysfunction specifically, but the authors noted that reduced erections and erectile duration may accompany reduced sexual desire in some patients.
What did the study find?
A cross-sectional pilot study carried out in the Breakspear neuroscience department compared 16 serologically positive Lyme disease patients with 18 matched controls.
The groups were matched for age, sex, body mass index, and blood pressure. None of the subjects were taking medications known to affect libido or had prior genitourinary surgery.
Investigators attempted to reduce confounding by excluding subjects taking medications or undergoing procedures known to affect sexual or urinary function.
Exclusion criteria included medications such as SSRIs, opioids, antihistamines, marijuana, tricyclic antidepressants, and several medications affecting bladder function. Subjects with prior pelvic, spinal, or genitourinary procedures were also excluded.
Investigators found that 50% of Lyme disease patients reported loss of libido compared with none of the controls (P<0.001).
The investigators noted that reduced libido in men may include reduced desire for intercourse, weaker erections, or shorter duration of erections during sexual stimulation.
The study also examined whether urinary bladder detrusor dysfunction explained the findings. Researchers found no statistically significant relationship between libido loss and bladder dysfunction.
Could neurologic Lyme symptoms contribute?
Lyme disease may affect multiple body systems including the nervous system, autonomic dysfunction, bladder function, sleep, mood, fatigue levels, and cognition.
Sexual symptoms such as erectile dysfunction or reduced libido may be influenced by multiple overlapping factors including pain, fatigue, sleep disruption, depression, medications, autonomic dysfunction, hormonal changes, or neurologic involvement.
The investigators explored whether bladder dysfunction explained sexual symptoms because Lyme disease has also been associated with neurogenic bladder and urinary symptoms.
For example, bladder dysfunction, autonomic symptoms, and neurologic complications have all been reported in Lyme disease and may indirectly influence sexual health.
Because many factors can affect sexual function, it may help to look beyond Lyme disease alone, including hormones, sleep problems, medications, stress, cardiovascular disease, and neurologic symptoms.
Can Lyme disease cause low testosterone?
There is limited evidence directly linking Lyme disease to low testosterone levels. However, chronic illness, inflammation, sleep disruption, weight changes, and other medical conditions may contribute to hormonal changes that affect libido or sexual performance.
Low testosterone should be evaluated separately rather than assumed to be caused by Lyme disease alone.
Limitations of the study
The findings should be interpreted cautiously.
- The study included only 16 Lyme disease patients.
- Only six male Lyme patients were included, limiting conclusions regarding erectile dysfunction specifically.
- This was a cross-sectional pilot study rather than a treatment study.
- The investigators primarily evaluated libido rather than erectile dysfunction itself.
- No testosterone testing was included.
- The study did not determine whether treatment improved symptoms.
- Participants were serologically positive Lyme patients and may not represent all patient populations.
- The sample size was too small to determine how common these symptoms may be in broader Lyme populations.
The authors recommended larger studies and suggested future research should use validated sexual function tools such as the International Index of Erectile Function-5 questionnaire.
Frequently Asked Questions
Can Lyme disease cause erectile dysfunction?
Some patients report erectile dysfunction during Lyme disease illness, but research remains limited. Multiple medical, neurologic, hormonal, and psychological factors may contribute.
Can Lyme disease cause low libido?
A small pilot study found reduced libido was more common among Lyme disease patients than controls, though larger studies are needed.
Can Lyme disease cause low testosterone?
Evidence directly linking Lyme disease to low testosterone is limited. Hormonal evaluation may help identify additional contributing factors.
Is there treatment for Lyme disease erectile dysfunction?
Treatment depends on identifying contributing factors. Fatigue, medications, autonomic dysfunction, hormonal abnormalities, neurologic symptoms, mood disorders, and underlying medical conditions may all require evaluation.
Can treatment improve sexual symptoms?
The published study did not evaluate treatment outcomes, so it remains unclear whether antibiotic treatment alone improves libido or erectile dysfunction.
Are sexual symptoms common in Lyme disease?
Sexual symptoms are discussed less frequently than fatigue or neurologic symptoms, making prevalence difficult to determine.
Clinical Takeaway
Sexual symptoms such as reduced libido or erectile dysfunction may occur in some Lyme disease patients, but the evidence base remains limited.
Sexual symptoms deserve evaluation because multiple neurologic, hormonal, autonomic, and non-Lyme factors may contribute.
Related Articles
These articles explore neurologic symptoms, autonomic dysfunction, recovery, and mechanisms that may contribute to complex Lyme disease symptoms.
Autonomic dysfunction and Lyme disease
Neurologic Lyme disease
Post-treatment Lyme disease syndrome
Persistent Lyme disease mechanisms
Brain fog and Lyme disease
References
- Puri BK, Shah M, Julu POO, Kingston MC, Monro JA. The Association of Lyme Disease With Loss of Sexual Libido and the Role of Urinary Bladder Detror Dysfunction. Int Neurourol J. 2014;18(2):95-97.
Dr. Daniel Cameron, MD, MPH
Lyme disease clinician with over 30 years of experience and past president of ILADS.
Symptoms • Testing • Coinfections • Recovery • Pediatric • Prevention
