The Most Common Running Injuries (and How to Avoid Them)

Running is one of the simplest and most rewarding ways to stay fit. Lace up your shoes, step outside, and you’re good to go. But for many runners, injury can quickly interrupt that rhythm. In fact, most running injuries don’t come from dramatic accidents—they build quietly over time.

The good news? Most are preventable.

Let’s break down the most common running injuries, why they happen, and—most importantly—how you can stay one step ahead of them.

1. Runner’s Knee (Patellofemoral Pain)

If you’ve ever felt a dull ache around the front of your knee, especially when running downhill or after longer runs, you’ve likely brushed up against runner’s knee.

Why it happens:
Often linked to poor alignment and muscle imbalances, particularly weak hips and glutes. Training errors—like increasing mileage too quickly—are a major contributor.

How to avoid it:
Focus on strengthening your glutes and hips. Strong muscles here help control your knee position and reduce stress on the joint. Keep increases in training gradual, and don’t ignore early discomfort.

2. Shin Splints (Medial Tibial Stress Syndrome)

A classic complaint, especially among newer runners or those returning after a break.

Why it happens:
Too much, too soon. Rapid increases in training load, running on hard surfaces, or wearing unsuitable footwear can all overload the shin.

How to avoid it:
Build your mileage gradually—no more than 5–10% per week. Mix up your running surfaces and include strength work for your calves, hips, and core. A proper warm-up can make a surprising difference too.

3. Achilles Tendinopathy

That stiffness or pain at the back of your ankle? It’s not one to ignore.

Why it happens:
The Achilles tendon handles huge loads with every stride. Tight or weak calves, poor footwear, and sudden increases in training intensity can all tip it over the edge.

How to avoid it:
Keep your calves strong and flexible. Regular strength work—especially controlled, slow exercises—helps build resilience. And remember: stiffness is often an early warning sign, not something to push through.

4. Plantar Fasciitis

A sharp pain under the heel or arch, especially first thing in the morning, is a tell-tale sign.

Why it happens:
Overloading the foot, often due to weak foot muscles, tight calves, or poor biomechanics. Hard surfaces and unsupportive shoes don’t help either.

How to avoid it:
Strengthen your feet and lower legs. Wear supportive footwear throughout the day—not just when running. Vary your surfaces and avoid sudden spikes in training.

5. Iliotibial Band Syndrome (ITB)

A sharp, stabbing pain on the outside of the knee that appears mid-run is often ITB-related.

Why it happens:
Contrary to popular belief, it’s rarely just “tightness”. Weak hips and glutes lead to poor control, placing extra strain on the outside of the knee.

How to avoid it:
Prioritise hip and glute strength. Avoid excessive downhill running and vary your routes. Even small changes—like running the same side of the road repeatedly—can contribute over time.

6. Hamstring Strains

Whether it’s a sudden pull or a lingering tightness, hamstrings can be a runner’s weak link.

Why it happens:
Weakness, poor flexibility, and muscle imbalances—particularly between the quads and hamstrings—are common culprits. Speed work and hills can expose these weaknesses quickly.

How to avoid it:
Strengthen your posterior chain (glutes, hamstrings, and lower back). Maintain good flexibility and always warm up properly before faster efforts.

The Bigger Picture: Why Injuries Really Happen

While each injury has its own triggers, most share the same underlying causes:

• Training errors (too much, too soon)
• Poor recovery
• Muscle weakness or imbalance
• Limited mobility
• Inadequate footwear or nutrition

Running places repeated stress on the body. With the right balance of load and recovery, that stress makes you stronger. Without it, it leads to injury.

Simple Habits That Keep You Running

If you take away just a few things, make it these:

• Progress gradually with your training
• Strength train regularly (especially single-leg work)
• Keep mobile with dynamic stretching
• Rotate shoes and vary running surfaces
• Listen to early warning signs—don’t push through pain

Need More Support?

Avoiding injury isn’t about guesswork—it’s about having the right guidance at the right time.

We’ve created a series of expertly designed, comprehensive free resources to help you understand, prevent, and recover from common running injuries. They include clear advice, practical exercises, and step-by-step rehab guidance tailored specifically for runners.

If you want to run stronger, longer, and with more confidence, these resources are a great place to start.