POTS in Children With Lyme Disease: A Hidden Autonomic Disorder
Pediatric autonomic dysfunction can be overlooked
POTS may follow Lyme disease in some children
Symptoms often interfere with school and daily function
POTS in children with Lyme disease is an underrecognized form of autonomic dysfunction that can leave children dizzy, exhausted, foggy, and unable to tolerate normal daily activity. Lyme disease POTS symptoms may include dizziness when standing, rapid heart rate, fatigue, brain fog, and exercise intolerance.
These symptoms are often mistaken for anxiety, behavioral problems, school avoidance, or deconditioning rather than a physiologic complication of infection and autonomic dysfunction.
Many children describe dizziness, foggy thinking, lightheadedness, or feeling worse when standing for long periods before POTS is recognized.
A child with Lyme disease may begin to complain of dizziness when standing. Their heart may race during gym class. They may feel wiped out after a shower, struggle to stay focused in school, or need to lie down after routine activity. These symptoms can reflect POTS in Lyme disease, a condition that deserves closer attention in pediatric patients.
This topic also fits within the broader challenge of pediatric Lyme disease, where symptoms often present differently than they do in adults and are more likely to be overlooked.
POTS in Children With Lyme Disease May Look Different
POTS, or postural orthostatic tachycardia syndrome, occurs when the autonomic nervous system has difficulty regulating circulation after a child stands up. In adults, the diagnosis typically involves a heart rate increase of at least 30 beats per minute within 10 minutes of standing. In children and adolescents, the threshold is generally 40 beats per minute.
Children do not always describe classic orthostatic symptoms clearly. Instead, they may report vague or fluctuating complaints such as:
- Lightheadedness or feeling faint
- Rapid heartbeat or palpitations
- Fatigue or exercise intolerance
- Headaches
- Nausea or abdominal discomfort
- Difficulty concentrating or brain fog
Because these symptoms overlap with many other pediatric conditions, POTS in children with Lyme disease is often missed.
Can Lyme Disease Cause POTS in Children?
Lyme disease can affect the autonomic nervous system through infection-related inflammation, immune dysregulation, and disruption of nerve signaling that regulates heart rate, blood pressure, and circulation. These changes can leave children feeling significantly worse when upright.
In clinical practice, children with Lyme disease and autonomic symptoms are sometimes first evaluated for anxiety, inattention, behavioral concerns, or deconditioning before the physiologic basis of their symptoms is recognized.
Cognitive symptoms are also common. Children may describe slowed thinking, trouble concentrating, or “brain fog,” especially after standing for extended periods or trying to push through a full day of activity.
Orthostatic Symptoms Parents Notice in Children With Lyme Disease
Parents may notice the pattern before clinicians do. A child may feel worse standing in line at school, after taking a hot shower, during sports, or while walking through a store.
Some children report improvement when sitting or lying down, only to worsen again when upright.
These orthostatic symptoms can become especially disruptive during periods of stress, infection, dehydration, rapid growth, or poor sleep.
Looking Beyond POTS: Other Autonomic Problems in Pediatric Lyme
While POTS is one of the best-recognized forms of dysautonomia, it is not the only autonomic pattern seen in children with Lyme disease. Some children have broader autonomic instability that does not meet strict POTS criteria.
Other autonomic problems may include:
- Orthostatic intolerance without classic POTS findings
- Neurally mediated hypotension
- Temperature regulation problems
- Digestive system dysregulation
- Autonomic neuropathy
Some children may develop broader dysautonomia patterns involving temperature regulation, dizziness, gastrointestinal symptoms, exercise intolerance, and cognitive slowing rather than classic POTS alone.
Some children also report sweating abnormalities, heat intolerance, worsening symptoms after showers, or difficulty regulating body temperature.
Focusing only on POTS may cause clinicians to overlook other forms of autonomic dysfunction contributing to persistent pediatric symptoms.
School Performance and Daily Function Can Be Affected
Autonomic symptoms can interfere with school attendance, concentration, and participation.
A child with Lyme-related dysautonomia may struggle with prolonged standing, walking between classrooms, sports participation, or completing a full school day.
These difficulties are sometimes misinterpreted as anxiety, poor motivation, school avoidance, or behavioral problems when the underlying issue is physiologic dysregulation.
Symptoms Often Fluctuate
One of the most confusing features of pediatric autonomic dysfunction is that symptoms may come and go.
Children may have better days and worse days. Symptoms often flare with infection, overexertion, dehydration, heat exposure, stress, or sleep disruption.
Recognizing this fluctuating pattern can help families understand that symptoms reflect physiologic dysfunction rather than poor motivation.
Evaluating POTS Symptoms in Children With Lyme Disease
Evaluation typically begins with a careful history of symptoms that worsen when standing, along with measurement of heart rate and blood pressure changes from lying to standing.
Evaluation may also include assessment for infection, inflammation, nutritional contributors, sleep disruption, and overlapping autonomic disorders.
The goal is not simply to label a child with POTS but to understand the physiologic pattern driving symptoms.
Management Considerations
Recognizing the autonomic pattern is important because persistent symptoms may continue unless both Lyme-related factors and autonomic dysfunction are addressed.
Management strategies may include hydration, salt supplementation when appropriate, pacing, sleep optimization, gradual physical conditioning, and treatment of underlying contributors.
Because pediatric presentations vary widely, treatment often requires an individualized approach.
For a broader discussion, see our overview of autonomic dysfunction in Lyme disease.
Frequently Asked Questions
Can Lyme disease cause POTS in children?
Lyme disease may contribute to autonomic dysfunction in some children, including symptoms consistent with POTS such as dizziness, rapid heart rate, fatigue, and orthostatic intolerance.
What are common POTS symptoms in children with Lyme disease?
Symptoms may include dizziness when standing, rapid heartbeat, fatigue, headaches, nausea, exercise intolerance, and brain fog.
Can Lyme disease cause dizziness and brain fog in children?
Yes. Children with Lyme-related autonomic dysfunction may develop dizziness, lightheadedness, fatigue, slowed thinking, and brain fog that worsen when upright.
Can POTS symptoms be mistaken for anxiety?
Yes. Children with autonomic dysfunction are sometimes initially misdiagnosed with anxiety, school avoidance, or behavioral problems before orthostatic symptoms are recognized.
Does every child with Lyme disease and dizziness have POTS?
No. Some children have broader autonomic dysfunction or orthostatic intolerance that does not meet strict POTS criteria.
Clinical Takeaway
POTS and autonomic dysfunction may be overlooked in children with Lyme disease, particularly when symptoms fluctuate or mimic anxiety and behavioral disorders.
When dizziness, fatigue, rapid heart rate, and brain fog worsen with standing, clinicians should consider autonomic dysfunction as part of the evaluation.
Related Articles
Lyme disease dizziness and foggy feeling
Exercise intolerance in Lyme disease
Persistent Lyme disease symptoms
Why Lyme symptoms come and go
References
- Kanjwal K, Karabin B, Kanjwal Y, Grubb BP. Postural orthostatic tachycardia syndrome following Lyme disease. Cardiol J. 2011;18(1):63-66.
- Adler BL, et al. Dysautonomia following Lyme disease: a key component of post-treatment Lyme disease syndrome? Front Neurol. 2024.
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
