Could my daughter’s back and joint pain be inflammatory?

Question

Hello doctor,

I am writing as a worried parent looking for some clarity and direction for my 17-year-old daughter. For the past two years, she has been living with ongoing musculoskeletal pain that started with severe lower back pain and has gradually become more widespread. Despite multiple tests and treatments, her symptoms continue and seem to be evolving, and it is very heartbreaking to watch her struggle at such a young age.

There is a strong family history of inflammatory and autoimmune conditions. Her great-grandfather had seronegative arthritis. My grandmother suffered from severe, crippling arthritis from a young age, though we never knew the exact type, and she passed away at 49 from a stroke. My mother had interstitial cystitis and required bladder removal at 40. My brother was diagnosed with ulcerative colitis at 36 after years of inflammatory symptoms.

So far, my daughter’s investigations have been mixed. Her autoimmune antibody tests and HLA-B27 are negative. An MRI was largely normal apart from a pinched nerve. However, a CT SPECT scan showed mild sacroiliac joint arthropathy on both sides and mild osteitis pubis.

Day to day, she deals with a wide range of symptoms. She has lower back and pelvic pain that matches the areas of inflammation seen on her bone scan. The pain comes and goes but can last for days at a time. She is especially stiff and sore first thing in the morning and again at night, and sitting for long periods makes it worse. Heat helps, and she often sleeps with a heat pad on her lower back.

She also has rib pain that feels bruised and tender to the touch. Her feet, especially her heels, are constantly sore, sometimes with pins-and-needles sensations. She often shifts her weight from one foot to the other just to cope and wears orthotics and supportive footwear, which only help a little.

Her hands have been another major concern. After what was meant to be a straightforward ganglion surgery, her hand became swollen about five days later, mainly around the knuckles and nail beds. Several of her nails became infected or even fell off. Her surgeon said it looked like an arthritic-type reaction and admitted she had not seen anything quite like it before. One finger, her index finger, never fully returned to normal size or function. More recently, she has been getting small, blister-like bumps on her fingers that can be painful, and her hand tends to swell after blood tests.

She also had a troubling reaction after a steroid injection. While the injection significantly helped her nerve pain, about six hours later, she developed intense, burning pain across her lower back, just above the buttocks. She was in severe distress, and nothing we had for pain relief seemed to help. It was heartbreaking to witness.

On top of this, she has developed dry, itchy, flaky skin on her eyelids, soreness over the front of her pelvis near the pubic bone that feels bruised and hurts when she walks, and, more recently, neck pain.

Over the last couple of months, she has also started having bowel issues. After eating, she can get severe abdominal cramping followed by diarrhea, which eases after going to the toilet. Some days she may have up to five bowel movements, whereas she previously went once a day or even less.

My daughter is not overweight, eats well, and is physically strong. She is incredibly resilient and puts up with far more pain than most adults would, but this has been affecting her quality of life for years now. Massage and podiatry offer only limited relief. Since the steroid injection, her nerve-related pain has improved, but the inflammatory-type pain remains.

Given her symptoms, scan findings, and strong family history, I cannot shake the concern that there may be an underlying seronegative inflammatory arthritis or spondyloarthropathy-type condition, even though her blood tests are negative.

Is it still possible for a young person to have an inflammatory or autoimmune condition like this despite normal blood work? What further tests, monitoring, or specialist pathways would you recommend at this stage?

Please help.

Thank you.

Answer 1

Hello,

Welcome to icliniq.com.

I have read your query, and I can hear how long, exhausting, and heartbreaking this journey has been for both of you, especially watching a strong young girl live with ongoing pain that does not have a simple explanation yet.

Taken as a whole, her symptoms do suggest that something inflammatory is going on, even though many of the standard blood tests have been negative. That can be incredibly frustrating, but it does not mean her pain is not real or that nothing is wrong.

The pattern you describe is important.

Your daughter has had chronic lower back and pelvic pain from a young age, which is unusual for mechanical or strain-related problems.
Her pain is worse in the mornings with stiffness and also increases after sitting for long periods, a pattern that is commonly seen with inflammatory rather than muscular pain.
The SPECT scan showed sacroiliac joint changes. This type of scan looks at how active and inflamed the bone and joints are, not just their shape, and it supports the idea of an inflammatory process rather than a simple structural issue.
She also has osteitis pubis, which means inflammation around the pubic bone and is often linked with inflammatory joint conditions.
Ongoing heel pain, especially when described as deep, sore, or burning, fits with enthesitis, which is inflammation where tendons and ligaments attach to bone and is a common feature of inflammatory arthritis.
Her rib and chest wall tenderness, along with newer neck pain, suggests that the inflammation is not limited to one joint or area.
The fact that her nerve pain improved after a steroid injection further supports inflammation playing a role, as steroids tend to calm immune-driven pain rather than mechanical pain alone.
Taken together, this pattern points toward an inflammatory arthritis spectrum, where the immune system causes ongoing joint and tissue inflammation.
More specifically, it fits with a seronegative spondyloarthritis, a group of inflammatory conditions that mainly affect the spine, pelvis, and attachment points of tendons, and which can still be present even when blood tests like antibodies and HLA-B27 are negative.

Many young patients, especially females, are HLA-B27 negative (human leukocyte antigen B27, is a specific protein on white blood cells, part of your immune system, that helps identify foreign invaders, but its presence is strongly linked to an increased risk for autoimmune conditions) and have normal antibodies early on, yet still clearly have inflammatory disease based on symptoms and imaging.

The family history you describe includes seronegative arthritis (inflammatory joint conditions that mimic rheumatoid arthritis but test negative for rheumatoid factor and anti-CCP antibodies), ulcerative colitis (a type of inflammatory bowel disease), bladder inflammatory disease (inflammation of the bladder), and possible severe arthritis in earlier generations. Strongly supports a genetic predisposition to immune-mediated inflammatory conditions.

Her heel pain, bruised and achy rib sensation, pelvic tenderness, and pain at ligament and tendon attachment sites are very typical of enthesitis, which is common in spondyloarthropathies (a group of inflammatory rheumatic diseases causing pain, stiffness, and swelling, primarily in the spine, also known as spondylitis, and where tendons/ligaments attach to bone, also called enthesitis, also affecting other joints, skin, eyes, and gut).

The sacroiliac findings and osteitis pubis (inflammation of the pubic symphysis) explain why her pain feels deep, throbbing, stiff, and bruised, especially in the mornings and at night. The fact that heat helps and sitting worsens it is another inflammatory clue.

Her severe pain flare after the steroid injection, although terrifying to witness, can sometimes occur as a post-procedure inflammatory response and does not rule out the benefit overall, especially since her nerve pain has clearly improved since.

The reaction in her hand following surgery is also notable. Post-surgical joint swelling, nail changes, blister-like lesions on the fingers, and exaggerated swelling after blood draws suggest immune hyper-reactivity, rather than a routine surgical complication. Surgeons do not often see this, but rheumatologists do.

Nail changes, skin involvement, and joint swelling raise the possibility of a psoriatic-spectrum or inflammatory connective tissue response, even in the absence of obvious psoriasis elsewhere. The new dry, flaky, itchy eyelid skin may also be part of an evolving inflammatory or autoimmune skin process.

Her recent bowel symptoms are particularly important. Cramping abdominal pain, diarrhea (passing loose, watery stools three or more times a day, often due to infections) after meals, and increased stool frequency that improves after bowel movements can signal inflammatory bowel disease or gut-driven inflammation, especially given her uncle’s ulcerative colitis (chronic inflammatory bowel disease).

Gut inflammation is closely linked to inflammatory arthritis, and in some patients, joint symptoms appear years before bowel disease is formally diagnosed. This does not mean she definitely has IBD, but it absolutely warrants further evaluation.

At this stage, your daughter needs ongoing care with a pediatric or adolescent rheumatologist, ideally one experienced with seronegative and early-onset inflammatory arthritis. A gastroenterology review is also very reasonable given her bowel changes.

Even when blood tests are negative, a diagnosis is often made based on clinical pattern, imaging, family history, and response to treatment. Early recognition matters because appropriate treatment can significantly reduce pain, protect joints, and improve quality of life.

Most importantly, please know that symptoms are consistent, patterned, and explainable within an inflammatory framework. This is not just growing pains, stress, or poor posture, and you are not imagining things. You have done everything right by persisting, advocating, and seeking answers.

I hope this answers your query.

Please let me know if I can assist you further.

Thank you.

Answer 2

Hello,

Welcome back to iclinq.com.

This has been an incredibly long and heavy journey, and for you as a family, and when you step back and look at everything together, her symptoms form a very clear pattern rather than a collection of unrelated problems.

She has had years of inflammatory-type pain starting in her lower back with morning stiffness, night pain, and worsening with sitting, along with documented bilateral sacroiliac arthropathy and osteitis pubis on imaging, which strongly points toward an inflammatory spondyloarthritis rather than mechanical pain, even though her blood tests and HLA-B27 are negative.

On top of this, she has widespread enthesitis-type pain involving her heels, ribs, buttocks, and pubic bone, which is very characteristic of juvenile-onset spondyloarthritis, particularly the enthesitis-related arthritis spectrum.

Her abnormal inflammatory reactions after trauma or procedures, such as the severe hand swelling, nail changes, and persistent finger dysfunction after ganglion surgery, as well as swelling after blood tests, suggest an overactive immune response rather than a surgical complication.

The skin changes on her eyelids and fingers, while subtle, raise the possibility of early psoriatic-spectrum disease, which does not always present with classic plaques initially. Importantly, her recent onset of post-meal abdominal pain and frequent diarrhea, combined with a strong family history of ulcerative colitis and other immune-mediated conditions, raises concern for evolving inflammatory bowel disease with associated arthritis, a well-recognized cause of sacroiliitis and enthesitis in young people.

The fact that she responded significantly to steroid treatment further supports an inflammatory process, even though she experienced a severe post-injection pain flare. Taken together, this picture is most consistent with juvenile-onset inflammatory spondyloarthritis, possibly IBD-associated.

It highlights the need for coordinated care with pediatric rheumatology and gastroenterology, as early recognition and treatment are key to preventing long-term joint damage and improving her quality of life.

I hope you find this helpful.

Take care.

Answer 3

Hello,

Welcome back to icliniq.com.

In General, nail deformity should be due to surgery. Maybe the surgeon who performed the cyst surgery can provide more clarity on that.

I hope this helps you.

Take care.