Shin splints: causes, treatment and return to running

What shin splints are

Shin splints is the common name for medial tibial stress syndrome: pain along the inner border of the shin bone (tibia), usually in the lower half. It is a bone stress problem. When you run and jump, the tibia bends slightly with each impact, and bone responds to that loading by remodelling and getting stronger. If load increases faster than bone can adapt, the area becomes sensitive and painful.

It sits on a spectrum with bone stress injuries. At one end is a sore, irritated shin; at the other is a stress fracture. That is why shin pain in runners should be taken seriously rather than pushed through.

Common causes and who gets it

Shin splints are common in new runners, runners returning after a break, military recruits, dancers, and people starting training blocks with lots of running and jumping. HYROX preparation, where weekly running volume often climbs quickly alongside jumping stations like burpee broad jumps, is a typical setting.

• A quick increase in running distance, frequency or speed
• Running mostly on hard surfaces, or a sudden change in surface
• A previous episode of shin splints
• Low calf strength and endurance
• Higher body weight, which increases impact forces
• Not eating enough to fuel your training, which affects bone health

Under-fuelling deserves special mention. When energy intake is too low for the training you are doing, bone remodelling suffers and the risk of bone stress injury rises. In women, periods becoming irregular or stopping is an important warning sign that needs a conversation with a GP. Our guide to nutrition for women who train covers fuelling in more detail.

Typical symptoms and look-alikes

Shin splints cause an aching or sharp pain along the inner edge of the shin, spread over several centimetres, which is tender to press. Early on, pain appears at the start of a run and eases as you warm up. As it worsens, pain may last through the run and linger afterwards.

Two other conditions need to be considered. A tibial stress fracture tends to cause pain in one small spot that you can point to with a finger, pain that persists at rest or at night, and pain when hopping. Chronic exertional compartment syndrome causes a building tightness or pressure in the lower leg during exercise that goes within minutes of stopping, sometimes with numbness in the foot. Both need a proper assessment.

What a physio assessment looks at

Your physio will ask about your training in detail: how much you run, how quickly it has increased, surfaces, shoes and other training. They will ask about your diet, menstrual history if relevant, and previous bone injuries. They will feel along the shin to see whether tenderness is spread out or concentrated in one spot, and may ask you to hop to check for signs of a stress fracture.

They will also assess calf strength, hip control and your running pattern. If a stress fracture is suspected, you may be referred for an MRI, which is more sensitive than an X-ray for early bone stress injuries.

It is worth bringing a rough training log to the appointment, even if it is just a list of runs and classes from the past month. The pattern of load leading up to the pain is often the most useful clue, and it shapes the plan for getting back.

What usually helps

The main treatment is reducing the load on the shin enough for it to settle, while keeping fit. That usually means cutting running volume significantly or pausing it for a period, and replacing it with lower-impact options like cycling, rowing, swimming or the air bike. How long depends on how irritable the shin is.

Alongside that, build strength in the calves, feet and hips, which helps absorb and share load. A slightly higher running cadence, around 5 to 10 percent, can reduce impact forces. Softer surfaces for some runs and replacing worn-out shoes may help some people, although the evidence for special insoles is weak. Manual therapy may ease soft tissue tightness around the shin but will not fix a load problem on its own.

What you can start with at home

1. Reduce or pause running and swap in cycling, rowing or swimming for fitness.
2. Calf raises, double then single leg, straight and bent knee, building to 3 sets of 15 to 20.
3. Tibialis raises: lean your back against a wall with heels forward and lift your toes, 3 sets of 15.
4. Hip strengthening such as single-leg bridges and side-lying leg raises, 3 sets of 10 to 15.
5. Once walking and hopping are pain-free, start a walk-run programme on flat, forgiving surfaces.

Our guide to returning to running after injury sets out a walk-run progression, and our guide to HYROX running training shows how to build volume without spikes.

Recovery time and when to get help

Mild shin splints often settle within a few weeks of reduced load, while more irritable cases can take several months to return to full running. Stress fractures usually take longer. Rushing back is the main reason it recurs. The on-site physio at Lycan Strength can plan your return, with 20% off for members; book a physio appointment online.

• Go to A&E if, after an injury, your lower leg becomes very tight, swollen and severely painful, or numb, as this can be acute compartment syndrome.
• See a GP or physio promptly if you have pinpoint bone pain, pain at rest or at night, or pain on hopping.
• See your GP if periods have become irregular or stopped while training.
• Call NHS 111 or see a GP urgently for a swollen, warm, painful calf. Call 999 with chest pain or breathlessness.

Questions