By Luther Chiew (Physiotherapist)
Premier Sports Medicine
Shin splints usually cause a broader area of exercise-related pain along the inner shin. A stress fracture may cause more localised pain, particularly as it worsens or starts affecting walking. These patterns overlap, so symptoms alone cannot reliably tell them apart. If pain is focal, worsening, causing a limp or present at rest, stop running and arrange prompt assessment.
Need help with recurring running pain? See our Running Injury Clinic assessment and treatment.
The key points for runners
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Being able to finish a run does not rule out a bone stress injury.
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A normal early X-ray does not always exclude a stress fracture.
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Repeated hopping or a short test run cannot safely clear you to keep training.
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The right plan depends on the diagnosis, your symptoms and your bone health.
What is the difference between shin splints and a stress fracture?
Shin splints usually means medial tibial stress syndrome: exercise-related pain along the inner border of the shinbone, or tibia. The sore area tends to extend along a section of the shin rather than one small spot. A clinician considers the history and examination together; a ruler or finger test at home cannot confirm it.
A bone stress injury develops when repeated loading exceeds the bone’s ability to repair and adapt. It can range from a stress reaction to a stress fracture, where a crack forms. You do not need a fall or a single memorable injury for this to happen. AAOS explains this range of bone stress injuries.
The distinction matters because a suspected bone injury may need protection from impact and medical investigation before you start a running rehabilitation programme.
What symptoms would make me look more closely?
I’d want to hear how the pain has changed, not just how painful your last run felt.
For example: did it originally start near the end of a long run, but now begin during your warm-up? Does it settle when you stop, or follow you home? Can you walk comfortably the next morning?
Being able to push through a run tells me what you can tolerate. It doesn’t tell me what is safe to keep loading.
These patterns help guide an assessment:
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A broader ache along the inner shin: may fit shin splints, particularly when linked to exercise.
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A small, distinct area of bone pain: raises concern for a bone stress injury, especially if symptoms are progressing.
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Pain during ordinary walking, a new limp, or pain at rest or at night: needs prompt assessment rather than another training experiment.
None of these findings proves a diagnosis. Early bone stress injuries may hurt only during exercise. You do not need to wait for swelling or night pain before seeking advice.
Can I keep running if it feels like shin splints?
Don’t assume all shin pain is harmless because you have had shin splints before. A familiar location does not guarantee the same problem.
If bone stress injury is possible, pause running and jumping until assessed. If walking hurts, reduce unnecessary walking too and seek prompt advice about how to protect the leg. Some injuries need crutches or other support; that decision depends on the assessment.
With confirmed shin splints, the plan may involve a period away from running, followed by a gradual return and appropriate strengthening. It should respond to your symptoms rather than a fixed promise to keep you running. AAOS guidance recommends reducing the aggravating activity.
My first question would be: do we have enough information to recommend running at all? Only then would I discuss distance, pace and frequency.
What should you do before your appointment?
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Stop testing it. Avoid repeated hopping, hard pressure on the sore spot or another run to see if it has settled. A clinician may use selected tests when appropriate; they are not a home clearance test.
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Write down the pattern. Note where it hurts, when pain starts, how long it lasts and any effect on walking. Include recent running, gym work, jumping sports and recovery days.
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Ask about suitable alternatives. Swimming or cycling may be options if comfortable, but do not assume all cross-training is appropriate for every bone injury.
I’d find a few clear notes more useful than a pain score on its own. “It used to hurt after 8 km; now it hurts walking to the shops” changes the conversation.
Why would I ask about food, recovery and previous injuries?
A training increase is one part of the picture. I’d also ask about previous stress fractures, recent time away from exercise, recovery between sessions, relevant medicines and known bone-health concerns.
Food intake matters too. If you are not eating enough to support training and normal body functions, bone health can suffer. This can affect runners of any gender. Menstrual changes, where relevant, also deserve attention rather than being dismissed as a normal result of hard training.
These questions help decide if a GP, sports physician or sports dietitian should be involved. They are not a diagnosis of an eating disorder or a reason to prescribe supplements to every runner. The Australian Institute of Sport’s clinical guidance includes assessment of energy availability and bone health.
Will I need an X-ray or MRI?
Not every sore shin needs a scan. A typical shin-splints presentation can often be assessed through history and examination.
If a bone stress injury is suspected, an X-ray may be the first investigation. Early X-rays can look normal, and MRI may be needed if concern remains. AAOS outlines these imaging limits.
I wouldn’t use a normal early X-ray as the only reason to send someone back to running. I’d consider it alongside the examination and symptom history, and arrange further medical review when needed.
When is shin pain urgent?
Get same-day medical assessment if you cannot bear weight or have substantial pain after an injury.
Sudden severe pain, a very tight or swollen lower leg, or new numbness or weakness needs emergency assessment. These symptoms can indicate conditions such as acute compartment syndrome. Do not wait for a routine running appointment. NHS guidance explains the warning signs.
Questions runners ask
Can shin splints turn into a stress fracture?
Progression is not inevitable, and the terms are not interchangeable. But continuing to load an unrecognised bone stress injury can make it worse. Increasingly localised or persistent pain deserves reassessment.
Does pain easing during a run mean it is safe?
No. A change in symptoms during exercise cannot reliably rule out bone injury. The overall pattern and clinical findings matter.
When can I return to running?
After a bone stress injury, readiness depends on the site, severity and recovery. A 2024 scoping review identified factors including comfortable walking, assessment of bone tenderness, strength and loading tests, and attention to contributing factors. Higher-risk injuries may also need imaging evidence of healing.
Return commonly begins with an individualised walk-run progression. The review found limited high-quality evidence for a single best protocol, so there is no universal timetable or percentage increase that suits everyone.
Get clear advice before your next run
At Premier’s Running Injury Clinic, assessment covers your symptoms, training history and relevant physical findings. Treadmill analysis is an option when useful and appropriate; suspected bone injury may need medical review before any running test.
I’d want you to leave knowing what we suspect, what activity to pause, if further investigation is needed, and what has to improve before you run again.
Book a Running Injury Assessment at Premier Sports Medicine. For urgent symptoms, use the medical-care advice above.
About the author
Luther Chiew is a physiotherapist at Premier Sports Medicine with an interest in running, sports and overuse injuries. His background includes strength and conditioning, and he holds a Bachelor of Applied Science and a Master of Physiotherapy Practice from La Trobe University. Read Luther’s practitioner profile.
Sources
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American Academy of Orthopaedic Surgeons. Shin Splints.
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American Academy of Orthopaedic Surgeons. Stress Fractures.
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Winters M and colleagues (2018). Medial tibial stress syndrome can be diagnosed reliably using history and physical examination.
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George ERM, Sheerin KR and Reid D (2024). Criteria and Guidelines for Returning to Running Following a Tibial Bone Stress Injury: A Scoping Review.
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Australian Institute of Sport. Clinical Management of RED-S.
General education for adult runners, not an individual diagnosis or exercise prescription. Clinical content reviewed and approved by Luther Chiew, Physiotherapist.
