Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

Two Very Different Causes of Runner’s Heel Pain

Heel pain is one of the most common complaints bringing runners to podiatric care, but not all runner’s heel pain has the same cause. Plantar fasciitis and calcaneal stress fracture both produce heel pain in runners, but their clinical features, severity, urgency, and treatment are fundamentally different. Treating a stress fracture as plantar fasciitis — continuing to run through pain with stretching and orthotics — can result in complete calcaneal fracture, a catastrophic injury requiring months of non-weight-bearing. At Balance Foot & Ankle in Howell and Bloomfield Township, Michigan, we evaluate runner’s heel pain systematically to make this critical distinction before treatment begins.

Plantar Fasciitis: The Classic Pattern

Classic plantar fasciitis in runners: pain is worst with the first steps in the morning after getting out of bed, typically improving after walking 10-20 minutes (the “warm-up” phenomenon). Pain is located at the anteromedial heel — the plantar fascial insertion on the calcaneus — typically reproducing pain with palpation at this specific point. Pain worsens after long runs and is notably worse the morning after a long run. Activities like stair climbing and rising on tiptoes reproduce the pain. X-rays may show a heel spur at the plantar fascial insertion (though the spur itself is not the pain generator). History commonly reveals a recent increase in mileage, shoe change, or increased hill or speed work.

Calcaneal Stress Fracture: The Warning Signs

Calcaneal stress fractures in runners produce pain that differs from plantar fasciitis in important ways. Location: pain is often more diffuse throughout the heel rather than specifically at the plantar fascial insertion, and may have a posterior or medial heel location. The squeeze test (medial-to-lateral compression of the calcaneus) is the most sensitive clinical test — it reproduces pain by compressing the stress fracture site. Pain often does not have the classic morning first-step pattern of plantar fasciitis — instead, pain develops with running and may persist at rest in more severe cases. History: sudden significant mileage increase, running on hard surfaces, recent return from hiatus, female runner with menstrual irregularity or low bone density (female athlete triad).

Imaging and Definitive Diagnosis

Plain X-rays: plantar fasciitis shows no acute abnormality (or only a plantar calcaneal spur). Stress fractures may be X-ray negative for 2-3 weeks before periosteal reaction becomes visible. MRI is the gold standard for calcaneal stress fracture — bone marrow edema appears before any X-ray changes. In runners with clinically suspected stress fracture (positive squeeze test, atypical pain pattern), we have a low threshold for MRI. When the diagnosis is confirmed, treatment diverges completely: plantar fasciitis continues carefully modified training with appropriate treatment; calcaneal stress fracture requires strict non-weight-bearing for 6-8 weeks. Contact Balance Foot & Ankle at (810) 206-1402 for runner’s heel pain evaluation — getting the diagnosis right from the start saves months of lost training.

Foot or Ankle Pain? We Can Help.

Balance Foot & Ankle — Howell & Bloomfield Township, MI

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When to See a Podiatrist for Heel Pain While Running

Distinguishing between plantar fasciitis and a calcaneal stress fracture is critical for runners because the treatment is very different. At Balance Foot & Ankle, Dr. Tom Biernacki uses clinical testing and imaging to accurately diagnose runner heel pain and create a recovery plan that gets you back to running safely.

Learn About Our Heel Pain Treatment Options | Book Your Appointment | Call (810) 206-1402

Clinical References

1. Taunton JE, Ryan MB, Clement DB, et al. A retrospective case-control analysis of 2002 running injuries. Br J Sports Med. 2002;36(2):95-101.
2. Boden BP, Osbahr DC. High-risk stress fractures: evaluation and treatment. J Am Acad Orthop Surg. 2000;8(6):344-353.
3. Martin RL, Davenport TE, Reischl SF, et al. Heel pain — plantar fasciitis: revision 2014. J Orthop Sports Phys Ther. 2014;44(11):A1-33.

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Dr. Tom Biernacki, DPM is a double board-certified podiatrist and foot & ankle surgeon at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has reached over one million views.