Why Your Hip Hurts When You Run
Hip pain is one of the most common complaints among runners, but the term covers several different conditions with different causes and treatments. The four most common causes: gluteal tendinopathy (pain on the outer hip from overloaded glute tendons, worsened by running uphill or lying on the affected side), hip flexor strain (pain at the front of the hip from tight or overworked iliopsoas, common in runners who sit for long periods), piriformis syndrome (deep buttock pain that can radiate down the leg, caused by the piriformis muscle compressing the sciatic nerve), and greater trochanteric bursitis (sharp pain directly over the bony prominence on the outer hip). All four conditions share a common underlying factor: muscle weakness or imbalance around the hip joint. Targeted strengthening of the glutes, hip flexors, and deep hip rotators resolves most cases within 6-12 weeks, typically without stopping running entirely.
The Four Causes Explained
1. Gluteal tendinopathy is the most common cause of outer hip pain in runners. The gluteus medius and minimus tendons attach at the greater trochanter (bony point on the outer hip). Repetitive loading during running, especially uphill, causes micro-damage that accumulates when recovery is insufficient. Unlike tendinitis, rest alone does not fix tendinopathy. Progressive loading through exercise is required to remodel the tendon structure. Key indicator: pain when lying on the affected side at night and pain that worsens with single-leg standing or stair climbing.
2. Hip flexor strain causes pain at the front of the hip or deep in the groin. The iliopsoas muscle is the primary hip flexor and is heavily loaded during the swing phase of running (lifting the leg forward). Runners who also sit for extended periods develop shortened, tight hip flexors that are vulnerable to strain when running volume increases. Key indicator: pain when lifting the knee against resistance or when stretching the hip into extension.
3. Piriformis syndrome causes deep buttock pain that may radiate down the back of the thigh. The piriformis muscle sits deep in the buttock and can compress the sciatic nerve when it spasms or becomes chronically tight, often from overuse during running. Key indicator: pain that worsens with prolonged sitting and radiates down the leg, relieved by walking.
4. Greater trochanteric bursitis causes sharp, localised pain directly over the bony point on the outer hip. The bursa (fluid-filled sac) becomes inflamed from repetitive friction, often secondary to gluteal weakness or IT band tightness. Key indicator: pinpoint tenderness when pressing the outer hip bone.
Identifying asymmetry in your running gait helps determine which side and which structure is overloaded. An Arion Running Analysis measures ground contact time differences, push-off force asymmetry, and stance phase duration to quantify left-right loading imbalances that drive hip pain.
How to Fix Each Cause
For Gluteal Tendinopathy
- Isometric glute holds: Stand on the affected leg, slight lean away from a wall. Hold 45 seconds, 4 sets, 3 times daily. Isometrics reduce pain and maintain tendon load.
- Side-lying hip abduction: 3 x 15 per side. Slowly progress load with ankle weights over weeks.
- Single-leg bridge: 3 x 12 per side. Progress to weighted single-leg bridge as strength improves.
- Avoid stretching across the body (adduction). This compresses the gluteal tendons against the greater trochanter and worsens symptoms.
- Do not lie on the affected side at night. Use a pillow between your knees to reduce compression.
For Hip Flexor Strain
- Hip flexor stretch (half-kneeling): Kneel on the affected side, push hips forward gently. Hold 30 seconds, 3 reps, twice daily. Only stretch to mild tension, not pain.
- Straight-leg raises: 3 x 10 lying on your back. Builds hip flexor strength through full range.
- Dead bugs: 3 x 10 per side. Strengthens the hip flexors while teaching core stability, which reduces compensatory hip flexor overload during running.
- If you sit for 8+ hours daily, stand and walk for 5 minutes every hour. Chronic hip flexor shortening is a major risk factor.
For Piriformis Syndrome
- Piriformis stretch (figure-4): Lie on your back, cross the affected ankle over the opposite knee, pull the bottom thigh toward you. Hold 30 seconds, 3 reps, twice daily.
- Foam roll glutes: Sit on a foam roller, cross one ankle over the opposite knee, roll slowly over the deep buttock. 2 minutes per side.
- Clamshells: 3 x 15 per side with resistance band. Strengthens the external rotators that support the piriformis.
- Avoid prolonged sitting. If you must sit, take breaks every 30 minutes and perform the figure-4 stretch.
For Greater Trochanteric Bursitis
- Treat the underlying cause (usually gluteal weakness or IT band tightness) using the exercises above.
- Ice the bony point on the outer hip for 15 minutes after running.
- Avoid lying on the affected side. Use a mattress topper if firm surfaces aggravate symptoms.
- Anti-inflammatory medication may help short-term but does not address the root cause.
General Prevention for All Hip Pain
- Strengthen glutes 3-4 times per week year-round. Weak glutes are the common factor in almost all running hip pain.
- Address hip flexor tightness if you sit for extended periods. Daily stretching and regular standing breaks.
- Follow the 10% weekly mileage increase rule. Sudden training load jumps are the trigger for most overuse hip injuries.
- If hip pain is consistently worse on one side and biomechanical testing reveals ground contact asymmetry, a structured insole like the Shapes HYROX Edition can help equalise force distribution from the foot up, reducing compensatory loading at the hip.
FAQ
Why does my hip hurt when I run?
Four most common causes: gluteal tendinopathy (outer hip, worsened by uphill running), hip flexor strain (front of hip, common in desk workers who run), piriformis syndrome (deep buttock pain radiating down leg), and greater trochanteric bursitis (sharp pain over outer hip bone). All are driven by muscle weakness or imbalance around the hip joint.
What are the most common causes of hip pain from running?
Gluteal tendinopathy and hip flexor strain are the two most common. Gluteal tendinopathy causes outer hip pain from overloaded glute tendons, especially with uphill running. Hip flexor strain causes front hip pain from tight or overworked iliopsoas muscles, especially in runners who sit for long periods. Both respond to targeted strengthening exercises.
Can I run with hip pain or should I stop?
In most cases you can continue running at reduced volume. If pain stays below 3/10 during running and does not worsen in the following 24 hours, reduced running combined with targeted strengthening is appropriate. Stop running if pain alters your gait, exceeds 5/10 during running, or radiates significantly down the leg (possible nerve involvement requiring assessment).
What exercises fix hip pain from running?
Depends on the cause. Gluteal tendinopathy: isometric glute holds, side-lying hip abduction, single-leg bridges. Hip flexor strain: half-kneeling hip flexor stretch, straight-leg raises, dead bugs. Piriformis syndrome: figure-4 stretch, foam roll glutes, clamshells. All causes benefit from glute strengthening 3-4 times per week.
How long does hip pain from running take to heal?
Most cases resolve in 6-12 weeks with consistent targeted exercise and modified running volume. Gluteal tendinopathy may take 3-6 months for full tendon remodelling. Hip flexor strains typically resolve faster (4-8 weeks). Piriformis syndrome can be persistent if the underlying tightness and weakness are not addressed. Early treatment produces faster results than waiting until pain is severe.
Does hip pain from running mean I need to stop running permanently?
No. Running hip pain is almost always a strength and load management problem, not a structural damage problem. With targeted exercise addressing the specific cause, most runners return to full training within 6-12 weeks. Continuing a maintenance strength programme prevents recurrence. Running itself is not the problem. Insufficient strength to support the running load is.
