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Growing Pains: The Nervous System Signal

Growing Pains: The Nervous System Signal

Why Nighttime Leg Aches Are Rarely Just Bones Getting Longer

Mother and daughter smiling together in a blanket fort

It usually starts after your child is already in bed. They call out, or come padding down the hall rubbing the front of a thigh or the back of a knee, telling you their legs hurt. The ache is real enough to wake them, real enough to keep them from settling. By morning it's gone, and they're running around like nothing happened. So you've been told what most parents are told: it's just growing pains, they'll grow out of it.

What we see in our Royal Oak office is that the aching itself isn't simply bones stretching. Research measuring pain thresholds with pressure testing has found that children with recurring growing pains register pain at a lower threshold than children without them, a pattern traced to the nervous system rather than the bones. Our doctors use gentle assessment along with Koren Specific Technique (KST) and Talsky Tonal Chiropractic (TTC) to help that system settle.

How Growing Pains Show Up

An aching or throbbing discomfort, usually in both legs, most often in the calves, the front of the thighs, or behind the knees, that tends to emerge in the late afternoon, evening, or right at bedtime. The discomfort can be intense enough to wake a child during the night, yet it typically eases by morning and doesn't stop them from running, playing, or doing sports the next day.

Many parents notice the worst stretches line up with periods of rapid growth, and the pain interrupting sleep can bring tiredness, shorter fuses, and a harder time settling the next day. It's common for these children to also experience headaches or tummy aches during the same stretches, a cluster that often points back to a nervous system running wound up. Growing pains are among the most common recurring pains of childhood, affecting as many as one in three school-aged children, most often between about ages 3 and 12.

Children with recurring growing pains have been shown to register pain at a lower threshold than children without them. The ache is real, and it's a nervous system signal, not just bones stretching in the night.

What Is Actually Happening

Research measuring pain thresholds with pressure testing has found that children with recurring growing pains register pain at a lower threshold than children without them, a nervous system finding rather than a bone finding. A well regulated nervous system shifts toward rest and recovery after a long, active day and releases built-up tension; in children prone to growing pains, that shift doesn't happen as smoothly, and the tension that should have settled shows up instead as an ache at night.

A five year follow-up found that children whose growing pains persisted kept that same lower pain threshold, distinct from children whose pains resolved, meaning the pattern isn't guaranteed to fade with age on its own for every child. Our INSiGHT neurological scans, thermal, HRV, and sEMG, give us objective data about the tension and stress pattern in a child's nervous system rather than guessing from the leg pain alone.

Our Approach

Growing pains is a diagnosis of exclusion, meaning a pediatrician should first rule out other causes of limb pain. Our doctors work alongside that care, never in place of it, using a gentle exam and INSiGHT neurological scanning, then Koren Specific Technique (KST) and Talsky Tonal Chiropractic (TTC), light, nervous-system focused contacts with no cracking or twisting, to help your child's system settle and release tension the way it's meant to.

What to Expect

Every child responds differently, and meaningful change usually builds gradually rather than all at once. Because a young spine is still developing and we rescan over time, we can see how your child's nervous system is responding and adjust the care plan as they grow. The years when growing pains tend to flare are the same years a child's spine and nervous system are developing and adapting most quickly, which is part of why this window is worth paying attention to rather than just waiting it out night after night.

What Parents Often Report

More comfortable nights and better sleep, getting through without being repeatedly woken by throbbing legs. Many families also find the flare-ups become less frequent or gentler as the underlying tension eases.

Because the aching legs and a child's overall regulation share the same nervous system root, families often notice a calmer, more settled child, along with fewer of the headaches or tummy aches that clustered around the flares.

Take the First Step

If the warm baths and waiting it out haven't changed the pattern, come talk with our doctors in Royal Oak about what gentle nervous system care could look like for your child.

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Common Questions

Are growing pains really a nervous system issue?
Growing pains have long been attributed to bone growth outpacing the muscles, but research measuring pain thresholds with pressure testing has found that children with recurring growing pains register pain at a lower threshold than children without them. The pain is a signal the nervous system is processing more intensely, not simply a side effect of getting taller.
Should we see a pediatrician before coming in?
Yes. Growing pains is a diagnosis of exclusion, meaning other causes of limb pain should be ruled out first. Once your pediatrician has evaluated your child and confirmed there's no structural or inflammatory cause, we can focus on the nervous system side of the picture, always alongside your pediatrician's care.
Why do the warm baths and stretching only help for a little while?
Warm baths and stretching soothe the muscles temporarily and can take the edge off, and many families get partial relief from them. But they don't change the nervous system pattern producing the ache, so it tends to return the next time a growth spurt loads the system back up.
My child also has sensory challenges and anxiety. Are these connected?
Often, yes. Children who already run with a more sensitive or wound-up nervous system are frequently the ones most affected by growth spurts and may feel these pains more often and more intensely. When several patterns cluster in the same child, it points back to a nervous system under sustained stress rather than to several separate problems.
How gentle is the care for a young child?
Our care for children is completely comfortable. Both Koren Specific Technique (KST) and Talsky Tonal Chiropractic (TTC) use a gentle fingertip contact or a light tap from the ArthroStim instrument. There's no cracking, no twisting, and no force, and we explain every step and work at your child's pace.
How many visits will my child need?
It depends on the child. Some families notice calmer nights within a few visits, while others take longer, especially through an active growth spurt. Our doctors will talk with you after the initial exam about what a reasonable plan looks like for your family.

Related: Fight or Flight (Kids) · Sensory Processing Disorder · Sleep Issues in Children · Infant & Newborn Chiropractic

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