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5 Common Running Injuries & How to Prevent Them

If you run long enough, chances are you’ve felt it — a twinge in your heel, an ache in your shin, or a nagging voice telling you to just push through. But here’s the thing: when something is slightly off and you repeat it stride after stride, your body will eventually send you the bill. This post is based on Episode 2 of The Runner’s Sole Podcast, where I break down the five most common running injuries I see in clinic every single week, why they happen, the early warning signs you should never ignore, and how to keep running smarter — not sidelined.

Why Do Runners Get Injured?

Imagine a slightly misaligned wheel on a car. It still drives fine for a while, but with every rotation it wears down the tyre in the same spot, little by little. Running injuries work in much the same way. It’s usually not one dramatic event — it’s a tiny imbalance repeated thousands of times a week.

That’s why roughly 80% of running injuries are overuse injuries. When a runner tells me they don’t know what happened, that the pain just appeared out of nowhere, I always ask three questions: Have you recently changed your shoes? Have you increased your mileage? Have you been switching surfaces? Nine times out of ten, the answer to at least one of those is yes.

The good news? If most running injuries are predictable, that means they’re preventable. So let’s run through the five biggest offenders.

The Big Five: Most Common Running Injuries

1. Plantar Fasciitis

If you’ve ever hopped out of bed in the morning and felt like you were stepping on a Lego, that’s plantar fasciitis. The plantar fascia is a strong band of tissue running under your foot — it’s designed to stretch and support you, but when it gets irritated and inflamed, it produces a sharp, stabbing pain in the heel.

Common Causes: Big spikes in weekly mileage, spending hours standing on hard floors, and running in old or flat shoes that have lost their support.

Prevention Tip: Mix regular calf stretches into your routine, strengthen the small muscles in your feet, and replace your running shoes before they reach the pancake stage. If you’re a beginner runner, building mileage gradually is one of the best things you can do to avoid heel pain.

2. Achilles Tendinopathy

The Achilles tendon is the thickest tendon in your body, connecting your calf muscles to your heel bone. When it gets aggravated, you’ll feel pain or stiffness in the back of your heel — often worst when you first start running and then easing off before flaring up again later.

Here’s a fact that puts things into perspective: your Achilles tendon can handle up to 10 times your body weight while running. That’s like lifting a car with every stride. No wonder it complains when we don’t look after it.

Common Causes: Hill training, speed work, and chronically tight calves are the usual suspects.

Prevention Tip: Eccentric calf raises are your best friend here. Gradually building up hill work rather than diving straight in will also help protect the tendon.

3. Shin Splints (Medial Tibial Stress Syndrome)

Most runners shrug this off as “just sore shins,” but what’s actually happening is bone stress. Think of bending a paper clip back and forth until it weakens — that’s what happens when you ramp up your mileage too quickly or change running surfaces without giving your body time to adapt.

Early Warning Sign: A dull ache along the inside of your shin that eases mid-run but returns afterwards. If you recognise that pattern, take it seriously before it progresses.

Prevention Tip: Follow the 10% rule when increasing weekly distance and make sure you’re running in shoes that suit your gait and foot type.

4. Stress Fractures

These are the silent creepers. You might think you can handle the pain — until you can’t. A stress fracture feels like a deep, throbbing ache that simply doesn’t go away. They’re most common in the metatarsals, the long bones of your forefoot. Even David Beckham famously broke one of his.

Here’s the scary part: early x-rays may not show anything. You often need an MRI or bone scan to catch a stress fracture in its early stages.

Red Flag: Pain that worsens when you run and doesn’t improve after a few days of rest. Stop and get it checked — pushing through a stress fracture can turn weeks of recovery into months.

Prevention Tip: Adequate calcium and vitamin D intake, gradual mileage increases, and varied training surfaces all help protect your bones.

5. Metatarsalgia

It sounds fancy, but metatarsalgia simply means pain in the ball of your foot. It can feel like you’re stepping on a marble with every stride — sharp, localised, and hard to ignore.

Common Causes: High arches, tight calves, and shoes with thin or hard forefoot cushioning.

Prevention Tip: This one is often straightforward to fix once you spot it. Better-cushioned shoes, metatarsal pads, and regular calf mobility work can make a significant difference.

Running Injury Myths — Busted

There’s no shortage of well-meaning advice in the running world, but some of it simply doesn’t hold up. Here are three myths I hear all the time:

Myth: “Running ruins your knees.” Research actually shows that recreational runners tend to have less knee arthritis than non-runners. Running, when done sensibly, strengthens the cartilage and structures around your joints.

Myth: “If I stop, I’ll lose all my progress.” Strategic rest doesn’t set you back — it helps your body adapt and come back stronger. Fitness doesn’t vanish overnight. A planned recovery day is an investment, not a loss.

Myth: “Pain is weakness leaving the body.” Pain is your body waving a red flag. It’s a signal that something needs attention, not a badge of honour to be pushed through. Ignoring pain is one of the most common beginner running mistakes — and one of the most costly.

5 Warning Signs You Shouldn’t Ignore

The earlier you act, the quicker you recover. If you recognise any of these red flags, it’s time to get assessed:

  1. Pain that lingers or worsens with every run, rather than easing as you warm up.
  2. Changes to your gait or running form — if you’re compensating or limping, your body is telling you something.
  3. Morning stiffness or pain with your first steps out of bed — a classic early sign of plantar fasciitis or Achilles issues.
  4. Swelling or visible bruising around the foot, ankle, or lower leg.
  5. Pain that doesn’t ease within 48–72 hours of rest.

Am I Just Sore — or Am I Injured?

This is one of the most common questions I get from runners, and it’s a great one. Normal muscle soreness typically peaks around 24–48 hours after a hard session and then gradually fades. It’s a sign your body is adapting.

Injury pain is different. It tends to stay, it worsens with activity, and crucially, it changes how you move. If you find yourself altering your gait to avoid discomfort — favouring one side, shortening your stride, or walking differently — that’s always a red flag. When in doubt, get it checked.

Your Running Injury Prevention Checklist

  • Follow the 10% rule — never increase your weekly mileage by more than 10% at a time.
  • Replace your running shoes on time — make sure they’re less than a year old and haven’t lost their cushioning.
  • Strengthen your calves, hips, and core — these are the muscles that protect your feet and lower limbs.
  • Cross-train regularly — give your joints a break with swimming, cycling, or yoga.
  • Don’t be afraid to ask for help early — a podiatrist looks at the whole picture: your form, shoes, gait, and lifestyle, not just your sore spots.

In clinic, we always aim to fix the cause rather than just papering over the symptoms. Address the root issue and the pain usually goes away for good.

🎧 Prefer to Listen?

Catch the full episode of Step Wrong, Hurt Long on The Runner’s Sole Podcast — available on Spotify, Apple Podcasts, and all major platforms.

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