Can I Donate Blood After Lyme Disease—or Is It Unsafe?
Lyme disease is not known to spread through blood transfusion.
Most blood donation centers allow donation after treatment once patients are symptom-free and no longer taking antibiotics.
The greater transfusion concern involves Babesia, a tick-borne parasite that can survive in stored blood.
Can you donate blood after Lyme disease? In most cases, yes—but only after completing treatment and fully recovering.
Donating blood after Lyme disease is generally considered safe once symptoms have resolved and antibiotics are finished.
Although Lyme disease itself is not known to spread through transfusion, blood centers remain cautious because deer ticks can also transmit Babesia, which can survive in stored blood.
Why Blood Donation Guidelines Differ
Blood donation recommendations for people who’ve had Lyme disease can vary slightly by country and over time.
Most blood donation programs follow several general principles:
- You are fully recovered and symptom-free
- You are no longer taking antibiotics
- You have completed an appropriate recovery period before donating
When in doubt, donation centers typically advise discussing eligibility with their medical staff.
Why Babesia Is the Real Blood Donation Concern
Lyme disease is caused by Borrelia burgdorferi, which does not survive in stored blood.
There has never been a confirmed case of Lyme disease transmitted through blood transfusion.
The greater concern involves Babesia microti, a parasite that infects red blood cells.
Unlike Lyme bacteria, Babesia can survive in stored blood and has caused documented cases of transfusion-transmitted babesiosis (TTB).
While Lyme disease itself is not known to spread through blood transfusion, Babesia can.
Because the same deer tick can transmit both infections, blood donation centers may ask donors about co-infections or persistent symptoms.
Blood banks now screen for Babesia in certain high-risk regions of the United States.
If You Still Have Symptoms
If you continue to experience fatigue, brain fog, nerve pain, or other symptoms after treatment—often referred to as Post-Treatment Lyme Disease Syndrome (PTLDS)—it is best to delay blood donation until you have fully recovered.
Even after infection clears, the body may need additional recovery time.
When symptoms persist, consultation with your physician or the blood donation center’s medical staff is appropriate.
When It’s Generally Safe to Donate Blood
Most people are eligible to donate blood when they:
- Have completed antibiotic treatment
- Remain symptom-free
- Are no longer being treated for Babesia or other co-infections
At that point, most donation centers consider blood donation safe for both donors and recipients.
For many patients, donating blood after recovery can feel like an important milestone.
Frequently Asked Questions
Can Lyme disease spread through blood transfusion?
No confirmed cases of Lyme disease transmission through blood transfusion have ever been documented.
Can Babesia spread through blood donation?
Yes. Babesia can survive in stored blood and has caused transfusion-transmitted infections.
How long should you wait to donate blood after Lyme disease?
Most centers recommend waiting until treatment is completed and symptoms have fully resolved.
Can you donate blood if you still have Lyme symptoms?
No. If symptoms persist after treatment, blood donation should generally be delayed until recovery.
Did You Know?
Lyme disease isn’t transmitted through blood transfusion — but Babesia, another tick-borne infection, can be.
Clinical Takeaway
Lyme disease does not automatically disqualify someone from donating blood.
The key considerations are recovery, symptom resolution, and evaluation for co-infections such as Babesia.
Careful screening helps protect both donors and recipients while maintaining a safe blood supply.
Related Articles
- Healthy People May Be Unaware They Are Infected With Babesia
- Blood Donor Infects Premature Infants With Babesia
- Post-Treatment Lyme Disease Syndrome (PTLDS)
- Babesia and Lyme Disease
References
- Leiby DA. Transfusion-transmitted Babesia spp.: Bull’s-eye on Babesia microti. Clin Microbiol Rev. 2011;24(1):14-28.
- Recommendations for Reducing the Risk of Transfusion-Transmitted Babesiosis. U.S. Food and Drug Administration.
- Infectious Disease and Blood Donor Qualification Testing. American Red Cross.
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
