PANS, Lyme Disease, and OCD Symptoms in Children
Sudden OCD symptoms may resemble PANS
Some children with Lyme disease develop neuropsychiatric symptoms
Careful evaluation may identify infectious triggers
Some children with Lyme disease develop sudden behavioral or psychiatric symptoms that resemble pediatric acute-onset neuropsychiatric syndrome (PANS) or pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS). These symptoms may include anxiety, obsessive-compulsive behaviors, mood changes, and difficulty concentrating.
Because these presentations involve changes in behavior, emotion, and cognition rather than obvious neurologic deficits, they are sometimes evaluated initially as psychiatric conditions. In certain cases, however, infections or inflammatory processes affecting the nervous system may contribute to these symptoms.
This article is part of the Pediatric Lyme Disease guide, which examines how Lyme disease can affect children differently from adults.
What Is PANS and How Does It Differ From PANDAS?
Pediatric acute-onset neuropsychiatric syndrome (PANS) describes a condition in which children develop sudden psychiatric or behavioral symptoms, often including obsessive-compulsive behaviors or severe anxiety.
Pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS) describe a similar syndrome believed to be triggered by streptococcal infections. In both conditions, symptoms are thought to involve immune or inflammatory responses affecting brain circuits that regulate behavior and emotion.
A defining feature of these syndromes is the abrupt onset of symptoms, which may appear over days rather than gradually over months.
PANS, Lyme Disease, and OCD Symptoms
In some children, behavioral or neuropsychiatric symptoms may appear alongside other manifestations of Lyme disease symptoms, including fatigue, headaches, dizziness, or cognitive difficulties.
In these situations, the challenge for clinicians is determining whether the symptoms reflect Lyme disease, another infection, an immune-mediated process, or a combination of factors.
Overlap between Lyme disease and PANDAS-like neuropsychiatric presentations has been discussed in the medical literature, including a review by Rhee and Cameron examining infectious triggers and diagnostic challenges.1
These presentations may also overlap with broader patterns described in neuropsychiatric Lyme disease.
Common Behavioral Symptoms
Children experiencing PANS-, PANDAS-, or OCD-like symptoms may develop:
- sudden anxiety or panic symptoms
- obsessive thoughts or compulsive behaviors
- irritability or mood swings
- difficulty concentrating
- sleep disturbances
- decline in school performance
These symptoms can be distressing for both children and families and may appear rapidly during the course of illness.
Why These Symptoms Can Be Confusing
Behavioral and neuropsychiatric symptoms in children can have many possible causes. Anxiety disorders, obsessive-compulsive disorder, infections, inflammatory conditions, and neurologic illnesses may all produce overlapping symptoms.
Because Lyme disease can affect the nervous system, some children with tick-borne illness may develop symptoms that resemble psychiatric disorders. This overlap can contribute to delayed diagnosis.
Children with neurologic Lyme disease may also experience symptoms such as headaches, dizziness, fatigue, or autonomic dysfunction. These broader neurologic features are discussed in more detail in Neurologic Lyme Disease in Children.
Other Neuropsychiatric Symptoms
Although this discussion focuses on PANS-, PANDAS-, and OCD-like presentations, children with Lyme disease may experience a broader range of neuropsychiatric symptoms.
- anxiety or panic symptoms
- irritability or mood swings
- attention or concentration difficulties
- sleep disturbances
- cognitive slowing or brain fog
Because these symptoms can occur in many pediatric conditions, careful clinical evaluation is necessary to determine the underlying cause.
Possible Infectious Triggers
PANS and PANDAS are most commonly associated with streptococcal infections. However, other infections have been proposed as possible triggers of similar neuropsychiatric symptoms.
Researchers have suggested that inflammatory responses to infections may affect brain regions involved in emotion and behavior. In some children, this process may contribute to sudden changes in mood, anxiety levels, or compulsive behaviors.
How Are PANS and Lyme Disease Evaluated?
When children develop abrupt behavioral or psychiatric symptoms, clinicians typically consider a wide range of possible causes. Evaluation may include medical history, neurologic examination, laboratory testing, and assessment of possible infectious or inflammatory triggers.
Careful clinical evaluation is essential to determine the underlying cause and guide appropriate management.
Frequently Asked Questions
What is PANS disease in children?
PANS is a syndrome characterized by sudden onset psychiatric or behavioral symptoms, often including anxiety or obsessive-compulsive symptoms.
Can Lyme disease cause OCD symptoms?
Some children with Lyme disease develop obsessive-compulsive symptoms or behavioral changes, although these symptoms may have multiple possible causes.
Can Lyme disease trigger PANS?
Researchers have discussed infectious triggers for PANS-like symptoms, but determining causation in individual children can be challenging.
What is the difference between PANS and PANDAS?
PANDAS is specifically associated with streptococcal infections, while PANS includes a broader range of potential triggers.
Can infections cause sudden behavior changes?
Yes. Some infections and inflammatory conditions have been associated with abrupt behavioral, emotional, or cognitive changes.
Clinical Takeaway
Behavioral changes, OCD symptoms, anxiety, and sudden mood shifts in children deserve careful evaluation.
Recognizing overlapping presentations between infections, inflammation, neurologic illness, and psychiatric conditions may help families and clinicians consider a broader differential diagnosis.
Related Articles
These articles explore pediatric neurologic symptoms, diagnosis, and behavioral presentations.
Autonomic dysfunction in Lyme disease
Lyme disease misdiagnosis
Brain fog in Lyme disease
Recovery from Lyme disease
Persistent Lyme disease overview
References
- Rhee H, Cameron DJ. Lyme disease and pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS): an overview. International Journal of General Medicine. 2012;5:163–174.
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
