Shin Splints: When to See a Physio

Shin pain is one of the most common reasons runners in the Sutherland Shire come to see us — and one of the most commonly ignored. "Shin splints" is the everyday term for medial tibial stress syndrome: pain along the inner border of the shin bone that typically appears when running volume or intensity climbs faster than the body can adapt.

Most cases settle well. But shin pain sits on a spectrum that ends in bone stress injury, and knowing where you are on that spectrum is what determines whether you're back running in three weeks or three months.

What actually causes shin splints

Despite the name, shin splints aren't a single injury. The pain comes from stress at the point where muscle and connective tissue attach along the tibia, combined with the bone's own response to repeated loading. Running places several times bodyweight through the lower leg with every stride, and bone adapts to that load by remodelling — a process that takes weeks.

Problems arise when load outpaces adaptation. The usual triggers we see are:

• A sudden jump in weekly distance — the classic case is a runner adding a parkrun, then a longer weekend run, then a midweek session, all within a fortnight
• A change in surface — moving from grass or treadmill to consistent road running, or adding hill work along the coastal trails
• New or worn-out footwear — a shoe change alters how load is distributed through the lower leg
• A return after time off — coming back at the volume you finished at, rather than the volume you're currently conditioned for
• Calf and foot weakness — a lower leg that can't absorb load efficiently passes more of it to the bone

What shin splints feel like

Typical medial tibial stress syndrome causes an ache along the inner shin, often spread over several centimetres rather than concentrated in one spot. It commonly hurts at the start of a run, eases somewhat as you warm up, then returns afterwards. There may be tenderness when you press along the bone's inner edge.

Early on, the pain is a nuisance that disappears with rest. That's the window where it's easiest to treat.

The line that matters: when it might be a stress fracture

This is the distinction worth understanding, because it changes everything about management.

A bone stress injury or stress fracture tends to produce pain that is sharply localised — you can often point to it with one fingertip. It's frequently painful when hopping on that leg, may hurt at night or at rest, and characteristically gets worse during a run rather than easing after warm-up. It does not settle with a few easy days.

If that description fits, stop running and get assessed. Continuing to run on a stress fracture risks it progressing to a complete fracture, which turns a manageable few weeks into months.

When to see a physiotherapist

Book an assessment if any of these apply:

• Pain that has persisted more than two weeks despite reducing your running
• Pain that is sharp, or localised to one specific point on the bone
• Pain that worsens as a run progresses, rather than easing
• Shin pain at rest or overnight
• Shin pain that has recurred every time you've tried to build your training back up
• Any pain accompanied by noticeable swelling over the bone

The last one on that list is the most under-rated. Recurring shin pain almost always means an underlying driver — strength, load management or mechanics — that hasn't been addressed. Rest alone resolves the symptom and leaves the cause intact, which is why it comes back.

How physiotherapy treats shin splints

Effective treatment is rarely just rest. A physiotherapy assessment identifies which factors are driving your particular case, and treatment typically combines:

• Load management — adjusting volume, intensity and surface so the tissue can settle while you keep running where possible, rather than stopping completely
• Calf and foot strengthening — building the lower leg's capacity to absorb running load is the single most protective factor against recurrence
• Running technique assessment — cadence, stride length and foot strike all influence how load reaches the tibia, and small adjustments can meaningfully reduce it
• Footwear review — appropriate for your foot and current training
• A structured return-to-running plan — progressive, so you rebuild capacity without repeating the spike that caused the problem

Where the picture is unclear or the injury keeps recurring, 3D running gait analysis provides objective data on how you actually move, which often reveals the loading pattern behind a stubborn case.

Preventing shin splints

The most effective prevention is unglamorous: build training volume gradually, keep a consistent calf strengthening routine, replace shoes before they're completely worn, and treat any new shin ache as information rather than something to push through.

If shin pain is interrupting your running, our running physiotherapy team assesses runners of every level across the Sutherland Shire — from first-time parkrunners to marathoners.