Lower Back Pain
What Causes Chronic Low Back Pain When X-Rays Look Normal? Looking Beyond the Lower Back
Key Takeaways
- Normal scans are common
- A large share of lower back pain is classified as “non-specific low back pain,” where X-rays or MRIs do not point to a single clear lesion. Feeling real pain despite a “normal” scan is very common.
- Why load gathers in the lower back
- Long hours of sitting leave the deep muscles across the abdomen and front of the hips tight. When you stand up, they pull the lumbar spine forward, while stiffness in the upper back and hips forces the lower back to move too much.
- When to see a doctor first
- If you have leg numbness or weakness, changes in bladder or bowel control, fever, or pain following a fall, please consult a medical professional first.
1. Your Back Hurts Even Though the X-Ray Looks Normal
Lower back pain is the single most common everyday symptom reported by men in Japan’s National Livelihood Survey, and the second most common among women (*1).
Studies estimate that roughly 85% of lower back pain is “non-specific low back pain,” meaning routine imaging cannot pinpoint a single structural cause (*2). Being told “nothing looks wrong on the X-ray” while your lower back still aches is a very common experience.
Medical imaging is an essential first step to rule out fractures or serious illness. Once those are ruled out, the next question is how your everyday movement patterns are concentrating load on your lower back.
2. What Clients Often Tell Me
Here are some of the concerns I hear most often in sessions:
- “After sitting for a while, a deep heaviness builds up in my lower back.”
- “My lower back feels stiff and hard to straighten when I get out of bed in the morning.”
- “Poultices and painkillers get me through the week, but the ache keeps coming back.”
- “Having my lower back rubbed feels good at first, but the heaviness returns right away.”
3. How Strain Concentrates in the Lower Back
Tightness deep in the abdomen and front of the hips pulls on the lower back
When you sit for hours, your hips stay flexed and the deep muscles connecting the lumbar spine to the front of the thighs (such as the psoas major) remain shortened and tense. When you stand up, those tight front muscles pull the lower spine forward, forcing the muscles along your lower back to brace all day.
When the upper back and hips stiffen, the lower back takes up the slack
Bending, extending, and rotating your torso are meant to be shared across the thoracic spine (upper and mid-back) and the hip joints. When the rib cage and hips lose mobility, the lumbar spine has to compensate for the missing motion, gradually overloading the lower back.
A sore lower back is often bracing to protect itself
Around an overloaded lumbar spine, muscles often tighten up like a natural splint to protect the area. Pressing hard into those guarding muscles may feel relieving for a moment, but can sometimes make the body brace even harder.
When to See a Medical Doctor First
- Numbness, tingling, or loss of strength in your legs or feet
- Changes in bladder or bowel function, or numbness around the saddle area (seek medical care immediately)
- Fever, unexplained weight loss, or a history of cancer
- Pain that started after a fall, impact, or accident
- Pain that does not ease at rest, or pain that wakes you up at night
4. How We Approach It at Rooton
At Rooton, we do not simply press hard on the sore spot in your lower back. We test how your whole body moves to find what is overloading your lumbar spine, and release those areas step by step (the Rooton Technique).
- Assessment: We check your posture, forward/backward bending and rotation, hip and thoracic mobility, and leg nerve function.
- Releasing the front line: We gently release tension in the deep abdomen and front of the hips in sync with your exhalation.
- Restoring joint motion: We improve mobility in the thoracic spine, pelvis, and hips so your lower back no longer has to overwork.
- Before-and-after check: We repeat the same movement checks before and after the session to confirm the change together.
- Everyday self-care: We share practical ways to sit, stand up, and reset your hips during the workday.
5. What You Can Do Between Work Blocks
Clinical guidelines for low back pain recommend staying gently active within comfortable limits rather than staying strictly in bed (*3). Breaking up long stretches of sitting is one of the most helpful habits you can build.
1-Minute Self-Care: Front-of-Hip Stretch
1. Stand beside a sturdy chair and rest one hand on the backrest.
2. Step one foot back so both feet point straight ahead.
3. Gently engage your lower abdomen so your lower back does not arch, and shift your pelvis slightly forward.
4. Feel a mild stretch across the front of the back hip while taking 5 slow breaths, then switch sides.
*If you feel any pain or numbness, stop immediately.
6. A Note from Mr. Sugiyama
At age 12, I suffered a stress fracture in my lower spine (L5 spondylolysis) and have spent the past 20 years learning how to care for my own back. What shows up on an X-ray and the pain you feel do not always match. Once you understand why strain is gathering in your lower back, daily life becomes much easier to manage.
Frequently Asked Questions
Should I rest in bed when my lower back hurts?
Unless you have severe pain or red-flag symptoms that require medical evaluation, clinical guidelines generally recommend continuing gentle everyday movement within comfortable limits rather than prolonged bed rest. Avoid forcing any movement that sharpens the pain.
Is heat or cold better for lower back stiffness?
For recurring, lingering heaviness, gentle warmth—such as a warm bath—often helps muscles relax. If the pain started suddenly after a strain or feels hot and acutely inflamed, avoid overheating the area for the first day or two and consult a doctor if the pain is severe.
Can I book a session if I have been told I have a disc herniation?
Yes. We listen carefully to your history and check your movement and nerve signs before choosing a gentle, comfortable approach together. If you have strong leg numbness or weakness, or are currently under a doctor’s care, please also check with your physician.
References
*1 Ministry of Health, Labour and Welfare (Japan). Comprehensive Survey of Living Conditions (2022).
*2 Deyo RA, Weinstein JN. Low back pain. N Engl J Med. 2001;344(5):363-370.
*3 Japanese Orthopaedic Association & Japanese Society for the Study of Low Back Pain. Clinical Practice Guidelines for the Management of Low Back Pain, 2nd ed. Nankodo; 2019.
