Dr. Kyle Warren
Edited by Meghan Feir Walker
Key Takeaways
● Lyme disease is a bacterial infection spread through blacklegged tick bites. Early symptoms of Lyme disease in children often include a bull’s-eye rash, fever, fatigue, and joint pain. But keep in mind that many people, kids included, do not develop a bull’s-eye rash.
● In children, Lyme disease is frequently mistaken for juvenile rheumatoid arthritis, growing pains, or behavioral and learning disorders.
● Lyme disease may contribute to neurological tics and PANS/PANDAS.
● Functional medicine approaches and natural antimicrobial support may help children with chronic, neurological, or post-treatment Lyme symptoms.
What Is Lyme Disease in Children?
Lyme disease in children is caused by the bacterium Borrelia burgdorferi, which most often spreads through the bite of an infected blacklegged (deer) tick. Once the bacteria enter the bloodstream, they can affect the skin, joints, nervous system, and, in some cases, the heart. Learn more about how the infection progresses in our guide on the stages of Lyme disease.
Pediatric Lyme disease is notoriously easy to miss. Children can't always describe what they're feeling with precision, and early symptoms like fatigue, headaches, and joint aches overlap with dozens of common childhood complaints, from growing pains to a run-of-the-mill virus. That overlap is one of the biggest reasons Lyme disease in kids goes undiagnosed or misdiagnosed for months or even years.
In our experience, Lyme disease isn't confined to a handful of hot-spot states. It shows up almost anywhere deer are present, which includes most of the country. We also find that roughly half the children we see don't remember being bitten, and never pulled off an engorged tick. That means a lot of exposure happens quietly, without the dramatic tick-still-attached moment or the textbook bull's-eye rash parents are told to watch for.
What Causes Lyme Disease in a Child?
You'll often hear that a tick needs to be attached for 24 to 36 hours before it can transmit B. burgdorferi. In our experience, that's not a rule you can count on. A tick can feed on one host for part of that window — say 20 hours — detach, and finish its meal on your child a few hours later, transmitting the infection well before any single attachment reaches 24 hours.
You don’t have to be in the woods to get a tick on you. While they prefer wooded and grassy areas, especially tall grass and leaf litter, ticks can be found in backyards and can even jump from trees onto their prey.
If you know your child has had tick exposure and they develop a flu-like illness or a rash of any kind, don't wait. That combination alone is reason enough to ask for testing and antibiotics right away.
Children are at higher risk than adults for a few practical reasons. They spend more time playing outdoors, especially in yards, parks, and wooded areas near home. Their smaller body size means a tick bite can deliver a proportionally larger bacterial load. And because ticks often attach in hard-to-see spots — behind the knees, along the scalp, behind the ears — bites in kids are simply harder to catch early.
What Are the Symptoms of Lyme Disease in Children?
Parents often ask what Lyme disease looks like in a child and what early warning signs there are to watch for. Symptoms generally progress through stages, and recognizing the earliest signs gives families the best chance at early intervention.
Early-Stage Symptoms (3–30 Days After Bite)
● Bull's-eye rash (erythema migrans)*
● Fever
● Chills
● Fatigue
● Headache
● Swollen lymph nodes
● Muscle aches
● Joint pain
● Stiff neck
*A summertime flu-like illness or a bull's-eye rash is a dead giveaway. But the key point for parents is that a child can absolutely have Lyme disease without ever developing that rash. Some studies suggest as many as a third of infected children never notice a bull’s-eye rash. That means Lyme disease in children can present initially as nothing more than a low fever and a tired, achy kid, easy to write off as a passing bug.
How Lyme Disease Often Looks in Kids (Dr. Warren’s Clinical Insight)
In our clinical experience helping families with complex, chronic presentations, Lyme disease in kids rarely looks like the textbook description. Instead, chronic Lyme disease in children tends to show up as one of two major presentations: a joint condition that looks just like juvenile rheumatoid arthritis, or an unexplained, often worsening neurological or behavioral problem. Recognizing these two patterns early is often the difference between a fast root-cause diagnosis and years spent chasing the wrong specialist.
1. Joint pain that mimics juvenile rheumatoid arthritis. This is one of the most common ways we see chronic Lyme disease present in kids — aches and swelling that get chalked up to ordinary growing pains or juvenile inflammatory arthritis, and monitored rather than investigated for an underlying infection.
2. An unexplained, evolving neurological or behavioral problem. Just as often, the first signs are neurological or behavioral rather than physical. We regularly see:
● Learning difficulties
● Falling grades
● Behavioral changes
● School delays
● Neurological tics
There is a strong relationship between Lyme disease and neurological Lyme disease, including PANS and PANDAS presentations, which we discuss in more detail below. When a child's symptoms fall into either of these two patterns and don't fit into a tidy diagnostic box, we've learned to ask about tick exposure early in the workup — not as a last resort.
Late-Stage/Disseminated Symptoms
Left untreated, Lyme disease can spread beyond the initial bite site, leading to:
● Lyme arthritis
● Bell's palsy
● Brain fog
● Mood changes
● Memory issues
Lyme Disease, PANS and PANDAS in Children
PANS (Pediatric Acute-onset Neuropsychiatric Syndrome) and PANDAS (Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections) describe a sudden, often dramatic onset of obsessive-compulsive behaviors, anxiety, tics, and developmental regression in children. Parents frequently describe it as their child changing “overnight.”
Dr. Warren commonly identifies underlying Lyme disease in children who present with PANS/PANDAS-like symptoms. Standard psychiatric or behavioral evaluations are not designed to screen for tick-borne infection, so this connection is often missed entirely in a conventional workup. A more comprehensive functional medicine evaluation — one that considers infection, immune dysregulation, and inflammation together — can uncover a root cause that a symptom-by-symptom approach may not catch.
Addressing the underlying Lyme disease, where present, is often a critical piece of resolving PANS/PANDAS symptoms rather than managing behavioral symptoms in isolation. For families exploring this connection, our overview of recent advances in Lyme testing is a useful next step.
Stages of Lyme Disease in Children
| Stage | Description |
| Early Localized | Rash and flu-like symptoms |
| Early Disseminated | Infection spreads to joints and nervous system |
| Late Disseminated | Chronic inflammation and neurological complications |
How Is Lyme Disease Diagnosed in a Child?
Diagnosing Lyme disease in a child typically starts with a clinical evaluation and a careful history of possible tick exposure, including where the family lives, recent outdoor activity, and whether a rash or bite was noticed. Unfortunately, the standard tests most doctors order next — ELISA and Western blot — have been missing kids and adults for years. These tests were built around a narrow set of strains and criteria, and they routinely fail to catch infection, especially once Lyme has settled into a more chronic phase.
Because of this, we run a more advanced testing panel that screens for over 18 species and strains of Borrelia, not just B. burgdorferi alone. Ticks also rarely carry just one pathogen, so we test for common co-infections as well, including various species of:
● Babesia
● Bartonella
● Anaplasma
● Other tick-borne co-infections
If your child has arthritic symptoms or any unexplained neurological or behavioral changes, running the standard ELISA and Western blot and concluding Lyme disease has been ruled out is a mistake we see far too often. At this point, we simply know better. A functional medicine evaluation looks at the broader clinical picture of symptoms, timelines, and comprehensive lab markers together, rather than relying on a single, outdated test to rule Lyme disease in or out. For more on where testing is headed, see our piece on Lyme testing advances.
How Do You Treat Lyme Disease in Children?
Conventional Antibiotic Treatment - Acute Only (Opening 30 days)
Standard treatment for Lyme disease in children typically involves a 14-to 21-day course of oral antibiotics, most commonly:
● Doxycycline
● Amoxicillin
● Cefuroxime
Antibiotics work well when Lyme disease is caught early, while the infection is still acute. But once Borrelia has been in the body for 30 to 60 days, it begins adapting and becomes markedly more antibiotic-resistant, which changes the entire approach.
Because of that resistance, some Lyme-literate doctors respond by prescribing more antibiotics, for longer. Instead of one antibiotic for two weeks, it's not unusual to see three antibiotics prescribed for a year or more. We understand the reasoning, but in our experience, this level of prolonged, heavy antibiotic use is hard on the body for adults, let alone children.
We believe there's a way to address chronic Lyme disease in children that does far less collateral damage than months of stacked antibiotics, even though a segment of the Lyme treatment community remains committed to that heavier approach.
A More Comprehensive Approach to Chronic Lyme and PTLDS
Rather than leaning on extended antibiotic courses, our approach to chronic Lyme disease and PTLDS in children centers on three things happening together:
1. Attacking Lyme and its co-infections in their chronic, less-active forms
2. Balancing and supporting the immune system so the body can actually fight back
3. Repairing the systems Lyme has disrupted along the way
There is real research behind supportive herbal antimicrobials for chronic Lyme disease. Herbs such as cryptolepis, Japanese knotweed, garlic, oregano, and others have shown meaningful activity against Borrelia and its co-infections. Used as part of this broader, three-part plan, rather than as a stand-alone swap for antibiotics, these tools let us address the infection without being too harsh on the child’s body.
To learn more, read these articles: herbal support for chronic Lyme, antibiotics vs. herbals for chronic Lyme and co-infections, and how do you kill Lyme.
Post-Treatment Lyme Disease Syndrome (PTLDS) in Children
Some children continue to experience symptoms even after completing a full course of antibiotics. This is known as post-treatment Lyme disease syndrome (PTLDS), or chronic Lyme. Lingering symptoms can include:
● Fatigue
● Brain fog
● Joint pain
● Mood changes
● Sleep problems
The term “post-treatment Lyme disease syndrome” sits in the middle of an ongoing debate. Many in the field now use PTLDS as the more clinically accepted stand-in for what's long been called “chronic Lyme.”
Here's what's actually going on underneath the label. Some forms of Lyme bacteria shift into less active, protected states, often described as biofilms or stationary forms. They aren't inactive, but they are far less active than Lyme in its early, acute form, which is exactly what makes them so difficult to kill with a standard antibiotic course. At the same time, part of this disease is the ongoing disruption it causes to the immune system itself, separate from any bacteria that are still present.
That's why a real recovery program has to address both pieces: the chronic, low-activity forms of the infection, and the immune system disruption it leaves behind. For these children, functional medicine may offer meaningful support by addressing immune health, gut health, mitochondrial function, and nervous system recovery alongside any antimicrobial work. Treating only one half of that equation is a big part of why so many kids and adults stay stuck.
Complications of Untreated Lyme Disease in Children
Parents sometimes ask whether untreated Lyme disease in children can become serious, or even life-threatening. While death from Lyme disease is rare, delayed treatment meaningfully increases the risk of persistent complications, including:
● Lyme arthritis
● Neurological complications
● Cognitive dysfunction
● Tics
● PANS/PANDAS symptoms
● Cardiac complications
The earlier Lyme disease is identified and addressed, the lower the risk that a child develops these longer-term, harder-to-treat complications.
How to Prevent Lyme Disease in Children
Prevention remains the most effective tool families have. Simple habits go a long way:
● Do thorough tick checks after outdoor play
● Dress kids in protective clothing in wooded or grassy areas
● Keep yards mowed and maintained to reduce tick habitat
● Remove any attached tick properly and promptly
When to See a Doctor for Suspected Lyme Disease
If your child shows any of these red-flag symptoms, especially after time spent outdoors, reach out to our team for more thorough testing, not the standard screen that's likely to miss it. Symptoms to watch for include:
● Unexplained joint pain
● Behavioral changes
● Learning difficulties
● New neurological tics
● PANS-like symptoms
● Facial paralysis
● A rash appearing after outdoor exposure
Before you reach out, gather what you can: the tick itself if you saved it, photos of any rash, a timeline of outdoor exposure, and a log of symptoms as they've evolved. If you still have the tick, you can also send it to TickCheck.com to have it screened for disease. If a pathogen shows up in the tick, we're immediately suspicious it made its way into your child as well. For families dealing with a complex or long-standing presentation, our integrative approach is built specifically around cases that don't fit a standard mold.
Frequently Asked Questions
What happens if a kid gets Lyme disease?
Antibiotic treatment is effective when Lyme disease is caught early, generally within the first 30 days of exposure. It becomes less effective the longer it goes untreated, especially past the 60-day mark. Even so, kids diagnosed later can still go on to be healthy and live a long, happy life with the right ongoing support.
Can Lyme disease cause PANS or PANDAS in children?
Yes. Lyme disease is increasingly recognized as a possible trigger or contributing factor in PANS/PANDAS presentations involving sudden behavioral and neurological changes.
Is Lyme disease contagious?
No. Lyme disease is not spread person-to-person; it requires transmission through a tick bite.
How is Lyme disease transmitted to children?
Through the bite of an infected blacklegged (deer) tick. Typically, it's after the tick has been attached for 24 to 30 hours — but that time can add up across multiple hosts. If a tick fed on someone or something else for 20 hours and then attaches to your child for another four, that's enough to transmit the infection.
What are the risk factors for Lyme disease in children?
Living in or visiting wooded or grassy regions and frequent outdoor play all increase risk. This isn't as geographically limited as it's often made out to be. Anywhere deer travel, ticks and Lyme disease can follow.
How do you test for Lyme disease in a child?
Standard ELISA and Western blot bloodwork is far from reliable. It misses a large share of true infections and can leave families believing Lyme has been ruled out when it hasn't. We rely on a more advanced panel that screens for many species of Borrelia along with common co-infections, and we never recommend the standard test alone as sufficient to rule out Lyme.
Could my child's growing pains actually be Lyme?
It's possible. Lyme-related joint pain is frequently mistaken for growing pains or juvenile rheumatoid arthritis, so persistent or unexplained aches are worth mentioning to your doctor.
The RHS Approach to Lyme Disease in Children
Lyme disease in children rarely behaves the way the standard narrative describes it. It's often chronic by the time it's recognized; it rarely announces itself with a textbook rash, and standard testing frequently misses it altogether. Piling on months of heavy, multi-antibiotic treatment isn't the only path forward, and in our experience, it's rarely the gentlest route for a growing child.
Our approach starts with testing that actually looks for what's there, across dozens of Borrelia species and the co-infections ticks commonly carry. From there, we build a plan around three things happening together: attacking the infection in its chronic form, restoring an immune system capable of finishing the job, and repairing the body systems Lyme has disrupted along the way. It's a foundational approach designed to get kids well with far less collateral damage than an extended antibiotic regimen.
If your child has a complex, persistent, or hard-to-explain set of symptoms, we'd rather run the right tests now than let chronic Lyme disease continue quietly in the background.
Ready to get answers for your child? Schedule a consultation with Dr. Warren and the team at Restorative Health Solutions.
Or visit our Lyme disease page to learn more about our root-cause methodology.
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