Heel Spurs: Causes, Symptoms, Diagnosis, Treatment, and Prevention

A heel spur (calcaneal spur) is a bony outgrowth (osteophyte) on the plantar surface of the calcaneus, often at the plantar fascia insertion. It may be asymptomatic or cause significant heel pain.

Etiology & Risk Factors

• Plantar fasciitis: Chronic traction at fascia origin → periosteal reaction → spur formation (present in ~50% of PF cases).
• Biomechanical stress: Overpronation, high arches, tight Achilles/gastrocnemius.
• Obesity: Increased load on heel fat pad and fascia.
• Age: Fat pad atrophy reduces cushioning; cumulative microtrauma.
• Occupation/Activity: Prolonged standing, running on hard surfaces.
• Footwear: Poor arch support, thin soles, high heels.

Symptoms

• Sharp, stabbing heel pain—worst with first steps (post-static dyskinesia) or after prolonged weight-bearing.
• Tenderness at medial calcaneal tubercle.
• Possible swelling, warmth.
• Altered gait (limping).

Diagnosis

• Clinical exam + history.
• Weight-bearing lateral X-ray confirms spur; but spur presence ≠ pain source (many asymptomatic spurs).
• Ultrasound/MRI if soft tissue pathology suspected (fascial tear, bursitis, nerve entrapment).

Treatment (Stepwise)

1. Conservative (90%+ resolve): Rest, ice, NSAIDs, stretching (calf/plantar fascia), night splints, OTC orthotics, supportive shoes.
2. Physical therapy: Eccentric loading, manual therapy, taping.
3. Advanced: Corticosteroid injection (caution: fat pad atrophy), ESWT (shockwave), PRP.
4. Surgery (rare): Plantar fascia release ± spur resection (endoscopic or open).

Prevention

• Maintain healthy weight.
• Wear activity-appropriate, supportive shoes; replace regularly.
• Daily calf/plantar fascia stretching.
• Gradual training progression; cross-train.
• Custom orthotics if biomechanical deficits identified.

Key point: Treat the plantar fasciitis, not the spur. The spur is a radiographic sign, not the primary pain generator.