Why Does My Back Hurt When I Walk? Understanding the Causes and What to Do Next
Lower back pain when walking usually happens because standing and moving put load on your spine in a way that sitting or lying down does not. Muscle fatigue, stiff joints, narrowing of the spine and alignment imbalances can all play a part. Because these problems come from carrying your body weight, they often only show up when your body is upright and moving.
Key points
- Walking loads your spine differently from sitting or lying down. This is why pain can appear only when you move.
- The cause is not always where you feel the pain. A problem in your pelvis or hips can send pain into your back.
- Lying-down scans (standard X-ray, CT, MRI) may relax the muscles and hide alignment problems that only show when you are standing.
- A standing, whole-body EOS scan captures your full alignment while your body carries its natural weight.
- If you have sudden leg weakness, numbness in your groin area, or loss of bladder or bowel control, get urgent medical help (your doctor or the nearest emergency department).
You go out for a walk and within a few minutes the ache starts. Maybe it eases the moment you sit down. Maybe it builds only after a longer distance, or only when you walk uphill. Either way, you are left wondering why something as simple as walking should hurt your back.
You are not alone. Lower back pain when walking is one of the most common reasons adults see their doctor, and it can be very frustrating when scans come back "normal". This page explains what may be going on, why standard scans can miss the real cause, and what you can do about it.
What does back pain when walking feel like?
It can show up in a few different patterns. Knowing yours helps narrow down the likely cause.
A low, heavy ache across the lower back. It gets worse the longer you walk and eases when you stop.
Sitting down or leaning on a shopping trolley brings quick relief. This is a typical sign of narrowing of the spinal canal.
Your back feels locked when you first stand up. It may ease after a few minutes and then tighten again.
Walking uphill increases the arch in your lower back. This can press on joints or nerves that are already narrowed.
What causes lower back pain when walking?
Several conditions make the lower back hurt specifically during walking. They all share one thing: carrying your body weight makes them worse. This is why the pain goes away when you sit or lie down.
The spinal canal narrows with age and squeezes the nerves. Walking narrows it further. Bending forward opens the canal, which is why leaning on a trolley helps.
The small joints at the back of each vertebra carry more load when you stand upright. Worn facet joints become painful under that pressure.
A tilted pelvis or uneven leg length spreads load unevenly across your spine. Muscles on one side overwork, and this leads to pain that builds with walking.
Weak or out-of-condition core and back muscles tire quickly when you walk. This leaves the joints and discs without proper support.
Your body works as a connected chain from your feet to your head. A stiff hip, a rotated pelvis or an old knee injury can force your lower back to make up for it. Over time, the back becomes the part that hurts, even though the original problem is somewhere else. This is why scans of a single area can miss the bigger picture.
How does a standing scan show what lying-down scans miss?
A standing, weight-bearing scan shows alignment problems that disappear when you lie down. When you lie flat for a standard X-ray, CT or MRI, gravity is taken away and your muscles relax. Joints settle into a neutral position. A tilt, a shift or a slight curve that causes pain every time you walk may look completely normal on a lying-down image.
An EOS scan takes a full-length image of your body while you stand naturally. It captures your spine, pelvis, hips, knees and ankles in a single exposure, so the links between all of them can be measured together. If your pelvis is tilted and your spine is curving to make up for it, the scan shows that. If one leg is in effect shorter and your lower back is taking up the difference, that shows too.
EOS uses about 90% less radiation than a standard X-ray, around ten times less. The scan itself takes only a few minutes and you simply stand still inside the machine.
Want to understand how your alignment might be adding to your pain when walking?
Book a free video consultationWhen MRI is the better tool: EOS is excellent at showing bones, joints and whole-body alignment. If your clinician suspects a disc bulge, nerve compression or soft-tissue damage, MRI is usually more suitable. The two types of scan work well together.
What can help with back pain when walking?
The right approach depends entirely on the cause, which is why an accurate diagnosis comes first. Some general principles that clinicians commonly recommend include:
- Staying active within comfort. Complete rest rarely helps. Gentle, regular movement keeps muscles in condition and joints mobile.
- Understanding your alignment. If a structural imbalance is driving the pain, targeted exercises or other interventions can be guided by imaging that shows the full picture.
- Avoiding staying in one position for long. Switching between sitting, standing and walking through the day stops any one position from overloading your back.
- Getting the right scan. If lying-down scans have come back normal but you still hurt when you walk, a standing scan may show what has been missed.
ScanAlign is a diagnostic imaging clinic. We do not provide treatment, but the detailed alignment data from an EOS scan gives your physiotherapist, osteopath or surgeon the information they need to plan your care accurately.
Before you start treatment, or change the one you are on, it is worth getting a detailed diagnosis. Knowing whether the cause sits in your pelvis, your legs or your spine changes what will actually help.
Get urgent medical help if your back pain comes with numbness or tingling in your groin or inner thighs, loss of bladder or bowel control, or sudden weakness in one or both legs. Contact your doctor or go to the nearest emergency department.
Frequently asked questions
Walking loads your spine under gravity and needs your joints and muscles to work together as you move. Sitting takes away much of that load. Conditions like spinal stenosis or facet joint wear hurt more under compression, and compression increases when you are upright and moving.
Yes. A tilted pelvis shifts the base of your spine off-centre. When you walk, the lower back muscles on one side have to work harder to keep you balanced. This can lead to pain that builds with distance. A standing whole-body scan can show this clearly.
Walking uphill increases the arch (lordosis) in your lower back. This narrows the space around the spinal canal and facet joints. If those structures are already tight or worn, the extra compression causes more pain.
Neurogenic claudication is the medical term for leg and back pain caused by spinal stenosis during walking. It typically eases when you lean forward or sit down, because that position opens the spinal canal slightly and takes pressure off the nerves.
When you lie flat, gravity is taken away and your muscles relax. An alignment problem or joint compression that only happens when you carry your weight can look perfectly normal on a lying-down scan. A standing EOS scan captures your body under the same conditions that trigger your pain.
An EOS scan uses about 90% less radiation than a standard X-ray, around ten times less. This makes it suitable even when full-length imaging of the spine and legs is needed.
No. ScanAlign accepts self-referrals. You can book a free video consultation directly. If you have earlier scan results or letters from your doctors, you are welcome to share them, but they are not required.
For patients travelling from abroad, the price is confirmed during the free video consultation. You can also visit our FAQs page.
Gentle walking is usually good for you. However, if there is an underlying structural or alignment problem, carrying on with long walks without dealing with the cause may increase discomfort. An accurate diagnosis helps you and your clinician decide on safe activity levels.
A specialist diagnostic radiographer goes through your symptoms and history on a short video call. They explain whether a standing EOS scan is likely to add useful information in your case and answer any questions you have. There is no obligation to book a scan.
Still wondering why your back hurts when you walk?
A free video consultation with a specialist diagnostic radiographer can help you decide whether a standing scan in London is the right next step.
Book a free video consultationSources
- NHS. "Back pain." nhs.uk, 2023. Overview of causes, self-care and when to seek help for back pain.
- Illés T, Somoskeöy S. "The EOS imaging system and its uses in daily orthopaedic practice." International Orthopaedics (SICOT), 2012;36(7):1405-1411.
- Kreiner DS et al. "An evidence-based clinical guideline for the diagnosis and treatment of lumbar spinal stenosis." The Spine Journal, 2013;13(7):734-743.
Written by Abbas Dhami (Specialist Diagnostic Radiographer)
This page is general information and not a diagnosis.
ScanAlign is the trading name of CoreMed Solutions Ltd and operates under The Harley Street Hospital's CQC licence.