AREAS OF FOCUS
Pain Amplification Syndrome
Pain amplification syndrome is a condition in which the nervous system turns up the volume on pain. The brain and nervous system become overly sensitive to pain signals, so even a light touch, normal activity, or an injury that should have healed can produce severe, long-lasting, and very real pain. It is one of the most common and most misunderstood pain conditions in children.
Why do the tests come back normal?
The source of the problem is not in the tissue; it is in the signaling. An X-ray can assess bone structure, and an MRI can visualize inflammation changes, but in pain amplification, both are usually normal. What has changed is how the nervous system processes signals, which standard imaging and bloodwork are unable to detect. This is the hardest part for families: they are told nothing is wrong, even though their child is clearly in pain. Both things are true at once. The tests are normal, and the pain is real.
What does it feel like, and what sets it off?
The pain is often disproportionate to the trigger. A minor sprain, an illness, or a period of stress can set it off, and the pain can persist for weeks or months afterward. Some children develop allodynia, in which things that should not hurt, such as a bedsheet, a sock, or a light touch, become painful. It can settle in one limb or move around. It is often accompanied by poor sleep, fatigue, and the anxiety that naturally follows pain no one can explain.
What helps?
Quite a lot, though not in the way families expect. The instinct is to rest and protect the painful area, but with amplified pain, that often makes things worse. The most effective treatments retrain the nervous system toward more normal functioning: steady, graded physical activity, attention to sleep and stress, and sometimes support from a psychologist who understands pain, not because the pain is imagined, but because the nervous system and the mind are part of the same circuit. Most children improve. The path is rarely quick, and being believed along the way is part of the treatment, not a courtesy.
How Dr. Shulman approaches it
Dr. Shulman is a pediatric rheumatologist who treats these conditions and has written extensively about them, including in his forthcoming book, Cramp: A Doctor’s Notes on Pain. His starting point is that an accurate diagnosis matters, but naming the condition and treating it are two distinct problems. A child in this much pain deserves to be believed while the work of getting better continues.
Frequently Asked Questions
Is pain amplification syndrome real, or is the pain in my child’s head?
It is real. Pain amplification is a genuine change in how the nervous system processes signals, not something a child is imagining or exaggerating. The pain is experienced exactly as reported. What differs is the cause: the signaling has become oversensitive, so ordinary input is perceived as significant pain. A child with this condition is not making it up, and being treated as if they were can make things worse.
Why is my child in pain when all the tests are normal?
Standard tests such as X-rays, MRIs, and bloodwork assess the body’s structure: bones, joints, tissues, and inflammation. In pain amplification, the structure is usually normal because the problem lies in how the nervous system processes and interprets pain signals, which these tests are not able to detect. Normal results do not mean there is nothing wrong. They mean the cause lies in signaling, not in structure.
How is complex regional pain syndrome (CRPS) different from other forms of amplified pain?
CRPS is often considered a specific, localized form of amplified pain that centers on one limb and causes distinct physical signs. These can include visible swelling, noticeable skin temperature or color differences, and extreme sensitivity to even a light touch. While CRPS is restricted to a specific area with these neurovascular changes, other types of amplified pain can be more widespread, move around the body, or affect areas without causing these visible skin and temperature shifts. The underlying problem, an overactive pain response, is shared.
Can children recover from pain amplification syndrome?
Yes. Most children improve, and many recover fully. Recovery usually comes from retraining the nervous system rather than resting the painful area: steady, graded physical activity, attention to sleep and stress, and sometimes support from a pain psychologist. The process takes time and is rarely linear, but the outlook is genuinely hopeful, especially when the condition is recognized early and treated in a coordinated way. Because pain amplification is a medical frontier, we need to learn more about the genetics, risk factors, and predispositions that can lead to long-term, challenging symptoms.
What should I do if I think my child has amplified pain?
A helpful first step is to name the pattern directly with a doctor: real, significant pain, often out of proportion to an injury, despite normal test results. From there, families often work with a clinician familiar with pediatric pain. The most important early steps are obtaining the right diagnosis, avoiding a cycle of increasingly extensive testing that yields no findings, and starting treatment that targets the nervous system rather than repetitive searches for structural injury or abnormal laboratory test results.
How does amplified pain differ between children and adults?
The core mechanism is the same at any age: a dysfunctional nervous system that amplifies pain signals. In children, amplified pain frequently starts and settles in a single limb, though it can still be widespread or shift locations. With timely, intensive treatment, many children go on to a full recovery. In adults, amplified pain more often presents as widespread, body-wide pain that overlaps heavily with conditions like fibromyalgia. Adults also tend to experience it alongside other chronic health issues and a longer history of unexplained symptoms, often after years of being told their tests are normal, which makes recognition and being believed all the more important.
Dr. Shulman specializes in treating children and adolescents. Adults who recognize this pattern in themselves can discuss it with their own physician or request a referral to a specialist in adult chronic pain, where similar principles for retraining the nervous system and addressing sleep, activity, and stress apply.
For appointments or clinical questions, please contact Rady Children’s Health Orange County (formerly CHOC).