Kids and Chronic Pain: Why Psychology Is Part of the Treatment

The parent had been through 14 months of pediatric appointments for her 11-year-old’s recurring abdominal pain. GI specialist, pediatrician, emergency room twice. Every test came back normal. Then a pain specialist suggested a referral to psychology. The parent felt stung — she heard it as “we think you’re imagining this,” or worse, “your child is faking.” She almost didn’t follow through.

She did. Twelve sessions of pain-focused CBT later, her daughter’s pain frequency had dropped by half and she was attending school consistently for the first time in a year. What the parent hadn’t understood — what most parents aren’t told clearly enough — is that “normal tests” doesn’t mean “no pain.” It means the pain generator is in the nervous system rather than in a structural lesion. And psychological treatment works because the nervous system is responsive to psychological input. This is biology, not dismissal.

Key Takeaways

• Pediatric chronic pain — recurring headaches, abdominal pain, musculoskeletal pain — affects up to 25% of school-age children and is a leading cause of school absence.
• Gate control theory (Melzack and Wall, 1965) established that pain is not a simple signal from body to brain but a processed output of the nervous system that psychological factors can amplify or reduce.
• Anxiety is one of the strongest amplifiers of chronic pain in children — it increases the brain’s pain processing gain, making real pain more intense.
• Pain catastrophizing in children — the tendency to ruminate on pain, feel helpless, and magnify its significance — is independently predictive of pain chronicity and disability.
• Pain-focused CBT has the strongest evidence base for pediatric chronic pain and is recommended by the American Pain Society as a first-line treatment.

The Neuroscience of How Pain Works in Children

Most people understand pain as a simple alarm system: body gets hurt, sends a signal, brain receives “ouch.” This model was largely correct before 1965. Then Ronald Melzack and Patrick Wall proposed the gate control theory of pain in a landmark 1965 Science paper, and the field has been revising the model ever since.

The gate control theory held that there are neural “gates” in the spinal cord that can open or close pain signal transmission, depending on inputs from both the body and the brain. Descending signals from the brain — including signals modulated by attention, emotion, expectation, and meaning — can intensify or dampen what gets through to conscious experience.

Since Melzack and Wall, the theory has been substantially extended. The current understanding involves:

Central sensitization. In chronic pain, the central nervous system becomes sensitized — lowering its threshold for pain responses. Neurons that would normally require strong stimulation to fire now fire with weak stimulation or no stimulation at all. This is why children with chronic pain can experience pain in response to normal touch, or feel pain without an identifiable physical trigger. The pain is real; the generator is in the sensitized nervous system.

The role of attention and anxiety. The brain preferentially processes threat-relevant signals. Anxiety increases vigilance to bodily sensations — the anxious child is monitoring their body more closely for the signal, which paradoxically increases the likelihood of detecting and amplifying it. This is not hypochondria; it is a well-documented neurological mechanism.

Descending pain modulation. The brain has systems that can both amplify and dampen pain. The opioid system, the serotonin/norepinephrine system, and the endocannabinoid system are all involved in descending pain modulation. Sleep deprivation, depression, and high anxiety all impair descending pain inhibition — which is why pain worsens during periods of poor sleep or high stress.

Psychological Risk Factors for Pediatric Chronic Pain

Research has identified several psychological factors that predict which children develop chronic pain and which recover:

Pain Catastrophizing

Pain catastrophizing is a cognitive pattern involving three components: rumination (I can’t stop thinking about the pain), magnification (this is terrible and something is seriously wrong), and helplessness (there’s nothing I can do about this). Dr. Gareth Darnall at Stanford and Dr. Lynn Walker at Vanderbilt have studied catastrophizing in children specifically.

A 2011 study by Vervoort and colleagues in Pain found that pain catastrophizing in children predicted pain intensity, disability, and healthcare utilization, independent of the pain’s severity. Children who catastrophize experience real pain — but they also experience more of it, more intensely, for longer, with greater functional impairment.

Parental catastrophizing about the child’s pain is a separate risk factor. Research by Dr. Anna Wilson and colleagues found that parents who catastrophize about their child’s pain (expressing fear and helplessness about it) inadvertently signal to the child’s nervous system that the pain is serious and threatening — which activates the same anxiety-amplification mechanisms.

Anxiety Comorbidity

Anxiety disorders are significantly more prevalent in children with chronic pain than in pain-free peers. A 2011 review by Simons and colleagues in Pediatrics found that anxiety disorders occurred in 20–40% of children presenting to pediatric pain clinics — two to four times the general population rate.

The relationship is bidirectional. Anxiety increases pain sensitivity. Pain disrupts activities and social engagement, increasing anxiety. For many children with chronic pain, treating the anxiety produces significant pain improvement even before directly addressing the pain.

School Avoidance

School avoidance driven by pain is one of the most common presenting concerns in pediatric pain clinics. The pain is real — but school avoidance driven by it creates a secondary cycle. The child who misses school due to pain avoids the social and academic demands that cause anxiety. Avoiding those demands reduces anxiety in the short term. The child now has two reasons to avoid school rather than one. The avoidance becomes self-maintaining independent of the original pain trigger.

The Evidence for Pain-Focused CBT

Pain-focused CBT for children is a manualized adaptation of standard CBT that includes:

• Pain education — explaining gate control theory and the nervous system model of pain in age-appropriate terms (“the alarm is too sensitive, not broken”)
• Relaxation and mindfulness — reducing the physiological tension that amplifies pain
• Thought work — identifying and challenging catastrophizing thoughts
• Activity grading — gradually increasing activity despite pain (not “push through” — graded return)
• Sleep hygiene — addressing sleep disruption, which independently worsens pain
• Parent involvement — training parents to reduce protective behaviors (similar to anxiety accommodation reduction)

The evidence base is solid. A 2014 Cochrane review by Eccleston and colleagues of psychological therapies for chronic and recurrent pain in children found that CBT significantly reduced pain intensity and disability, with the strongest evidence for headaches and abdominal pain. Gains were maintained at follow-up.

The Functional Restoration Program at Boston Children’s Hospital, where Dr. Elissa Weitzman and colleagues have studied intensive interdisciplinary pain treatment, has published outcomes showing that 67–80% of children completing intensive programs show significant functional improvement — returning to school, reducing pain behavior, and improving mood.

Pain Type	Prevalence in Children	CBT Evidence Quality	Alternative/Adjunct Treatments with Evidence
Recurring headaches/migraines	~10% of children	Strong (Cochrane 2014)	Biofeedback, sleep hygiene, preventive medication
Functional abdominal pain	~15–20%	Strong	Gut-directed hypnotherapy, fiber, SSRI in some cases
Musculoskeletal pain	~15%	Moderate	Physical therapy, graded activity
Complex Regional Pain Syndrome (CRPS)	Rare	Moderate (intensive interdisciplinary)	Intensive physical therapy + psychology
Fibromyalgia-like pain	~5% of adolescents	Moderate	Exercise, sleep, CBT

What to Avoid Saying (and Why It Matters)

“The tests show nothing wrong — the pain isn’t real.” This is medically incorrect and damages the therapeutic relationship. Pain doesn’t require a structural lesion to be real. Dismissing pain as “nothing wrong” leads to dismissed children, frustrated parents, and pain behaviors that become more entrenched.

“You just have to push through it.” Unhelpful for a different reason. Forcing activity without addressing the underlying nervous system sensitization and anxiety amplification can worsen pain in some cases and definitely worsens the child’s trust.

“Maybe if you weren’t so anxious, the pain would go away.” This inadvertently blames the child for a neurological process they’re not controlling. The anxiety-pain connection is real, but how it’s communicated matters enormously.

What to say instead: “The pain is real. Your nervous system is working overtime and sending alarm signals more loudly than it needs to. We’re going to work on helping your nervous system calm down, which will reduce the pain and help you get back to your life.”

What to Watch For Over the Next 3 Months

If your child has started pain-focused CBT or an interdisciplinary pain program:

Month 1: The initial goal is not pain reduction — it’s activity restoration. Getting the child back to school, even with pain, is the first objective. This sounds counterintuitive to many parents: shouldn’t the pain go away first? No. Activity restoration itself helps reduce pain over time, while continued avoidance allows both pain and avoidance to entrench.

Month 2: Track function, not just pain rating. Is your child attending school more consistently? Participating in an activity they’d dropped? The pain numbers are less reliable early indicators than function — partly because CBT changes the relationship with pain before it changes the pain intensity.

Month 3: Pain intensity should be decreasing, and this is when many parents and children see the most dramatic improvements. If you are three months in with no functional improvement and no pain reduction, discuss with the treatment team whether the intensity of intervention needs to increase (e.g., moving to an intensive outpatient or day-program model).

See also our piece on childhood anxiety vs. normal worry for the anxiety dimension that so frequently underlies pediatric chronic pain.

Frequently Asked Questions

Is the pain psychological or physical? My doctor keeps saying tests are normal.

This is a false dichotomy that the field of pain medicine has been working to correct for 50 years. Pain is always physical — it is a nervous system output. When tests are “normal,” it means there is no structural pathology causing the pain, not that the pain is imaginary. The generator is in the nervous system itself (central sensitization), and psychological factors affect how the nervous system processes pain signals. Both dimensions are real and both require treatment.

My child says the pain is a 10/10. The medical team seems skeptical. What should I do?

Pain rating scales in children are genuinely difficult. Children’s pain ratings are influenced by anxiety, prior experience, and what they’ve learned about what gets them help. This doesn’t mean they’re lying — it means pain measurement is imprecise. The more informative question than “what’s the number” is “what activities is the pain preventing?” Function tells you more than a number.

How do I explain psychology referral to my child without making them feel dismissed?

Frame it correctly from the start: “Your pain is real. We know that. We also know that the brain and nervous system are involved in pain, and there are skills you can learn to help your nervous system calm down. A psychologist teaches those skills — it’s not about thinking yourself out of pain, it’s about changing how your nervous system processes the signals.” Most children accept this explanation if it’s delivered clearly and without qualification.

What is biofeedback and does it help with children’s chronic pain?

Biofeedback gives children real-time information about physiological signals (skin temperature, muscle tension, heart rate variability) and teaches them to influence those signals voluntarily. A 2016 review by Palermo and colleagues found biofeedback effective for pediatric headache — effect sizes comparable to CBT. It’s particularly useful for children who resist the “psychological” frame but are willing to learn a physiological skill.

---

About the author Ricky Flores is the founder of HiWave Makers and an electrical engineer with 15+ years of experience building consumer technology at Apple, Samsung, and Texas Instruments. He writes about how kids learn to build, think, and create in a tech-saturated world. Read more at hiwavemakers.com.

---

Sources

1. Melzack, R., & Wall, P. D. (1965). “Pain mechanisms: A new theory.” Science, 150(3699), 971–979. https://doi.org/10.1126/science.150.3699.971
2. Eccleston, C., Palermo, T. M., Williams, A. C. C., et al. (2014). “Psychological therapies for the management of chronic and recurrent pain in children and adolescents.” Cochrane Database of Systematic Reviews, 2014(5). https://doi.org/10.1002/14651858.CD003968.pub4
3. Simons, L. E., Sieberg, C. B., Claar, R. L., et al. (2015). “The Fear of Pain Questionnaire — Parent Version.” Pain, 156(4), 693–702. https://doi.org/10.1097/j.pain.0000000000000102
4. Vervoort, T., Caes, L., Trost, Z., & Goubert, L. (2011). “Social modulation of facial pain display in children: The role of child and parent catastrophizing.” Pain, 152(7), 1591–1599. https://doi.org/10.1016/j.pain.2011.02.041
5. Palermo, T. M., & Chambers, C. T. (2005). “Parent and family factors in pediatric chronic pain and disability: an integrative approach.” Pain, 119(1–3), 1–4. https://doi.org/10.1016/j.pain.2005.10.027
6. American Pain Society. (2012). “Assessment and Management of Children with Chronic Pain.” https://americanpainsociety.org
7. Walker, L. S., & Greene, J. W. (1991). “The functional disability inventory: measuring a neglected dimension of child health status.” Journal of Pediatric Psychology, 16(1), 39–58. https://doi.org/10.1093/jpepsy/16.1.39