Heel Spur
A bony growth on the heel bone, often linked to chronic foot strain
Quick Facts
- Type: Foot and bone condition
- Location: Underside or back of the heel bone
- Often linked to: Plantar fasciitis
- Main treatment: Rest, stretching, supportive footwear
Overview
A heel spur is a bony outgrowth that forms on the heel bone (the calcaneus), usually on the underside where the foot's arch ligament attaches, or at the back where the Achilles tendon attaches. It develops gradually in response to long-term strain on the muscles, ligaments, and tissues of the foot.
Importantly, many heel spurs cause no pain at all and are found by chance on X-rays taken for other reasons. When the heel hurts, the pain is often due to the associated soft-tissue inflammation, such as plantar fasciitis, rather than the spur itself.
Symptoms
When a heel spur or its associated conditions cause symptoms, people may notice:
- Pain in the heel, often described as a sharp jab or a dull ache
- Pain that is worst with the first steps in the morning or after sitting
- Discomfort that eases with activity but may return after rest or long standing
- Tenderness at the bottom or back of the heel
- In some cases, no symptoms at all
The pain is frequently linked to inflammation of the plantar fascia rather than the bony spur directly.
Causes
Heel spurs form over months or years as a result of repeated stress and tiny injuries to the tissues attaching to the heel bone. The body lays down extra calcium at the site of strain, which can build into a spur.
Common contributing factors include repetitive pulling on the plantar fascia or Achilles tendon, often related to activity, footwear, and foot mechanics. Heel spurs frequently occur alongside plantar fasciitis, and the two conditions share many of the same causes. Because the spur itself forms slowly and is often painless, it is best thought of as a marker of long-term strain rather than the direct source of pain. Treating the underlying strain and inflammation is usually more helpful than focusing on the spur alone.
Risk Factors
- Activities involving a lot of running, jumping, or standing on hard surfaces
- Flat feet or high arches that alter foot mechanics
- Tight calf muscles or Achilles tendon
- Worn-out or poorly supportive shoes
- Excess body weight
- Increasing age
Diagnosis
Diagnosis is based on the history of heel pain and a physical examination, with imaging to confirm a spur.
- Physical exam: pressing on the heel to locate tenderness and checking foot mechanics and flexibility
- X-ray: can show a bony spur on the heel, though a spur seen on X-ray does not always explain the pain
- Assessing related conditions: evaluating for plantar fasciitis or Achilles problems, which often cause the actual symptoms
Treatment
Most heel spur symptoms improve with simple, non-surgical measures aimed at reducing strain and inflammation.
- Rest and activity changes: reducing high-impact activity while the heel recovers
- Stretching: calf and plantar fascia stretches to relieve tension on the heel
- Supportive footwear and inserts: cushioned shoes, heel pads, or orthotic insoles to spread pressure
- Ice and pain relief: icing the heel and using over-the-counter pain relievers as needed
- Physical therapy: targeted exercises and treatments
Most people improve with these steps over weeks to months. Injections or surgery are rarely needed and are reserved for severe, persistent cases. Patience is important, since heel pain related to chronic strain often takes time to settle and tends to return if the underlying causes, such as worn shoes or tight calves, are not addressed. Sticking with stretching and supportive footwear even after the pain eases helps prevent it from coming back.
Prevention
- Wear well-fitting, supportive shoes and replace worn-out footwear
- Stretch your calves and feet regularly, especially before activity
- Increase the intensity of exercise gradually
- Maintain a healthy weight to reduce stress on the heels
- Use cushioned insoles if you stand for long periods
When to See a Doctor
See a doctor if heel pain lasts more than a few weeks despite rest and home care, or if it interferes with walking or daily activities. Also seek care if you have:
- Severe heel pain that came on suddenly
- Redness, warmth, or swelling that could suggest infection
- Numbness or tingling in the foot
- Pain that does not improve with supportive shoes and stretching
A clinician can confirm the cause and recommend the right treatment.
Frequently Asked Questions
Does a heel spur always cause pain?
No. Many heel spurs cause no symptoms and are found by chance on X-rays. When the heel does hurt, the pain often comes from inflammation of nearby soft tissue, such as plantar fasciitis, rather than the spur itself.
What is the difference between a heel spur and plantar fasciitis?
A heel spur is a bony growth on the heel bone, while plantar fasciitis is inflammation of the ligament running along the arch. They often occur together and share causes, and the soft-tissue inflammation is usually what causes the pain.
How is a heel spur treated?
Most cases improve with rest, calf and foot stretches, supportive shoes or insoles, icing, and over-the-counter pain relief. Physical therapy can help. Injections or surgery are rarely needed and are reserved for severe, persistent cases.
Can heel spurs be prevented?
You can lower your risk by wearing supportive footwear, stretching your calves and feet, increasing activity gradually, maintaining a healthy weight, and using cushioned insoles if you stand a lot.
When should I see a doctor about heel pain?
See a doctor if heel pain lasts more than a few weeks despite home care, interferes with walking, came on suddenly and severely, or is accompanied by redness, swelling, numbness, or tingling.
References
- American Academy of Orthopaedic Surgeons (AAOS).
- Mayo Clinic. Plantar fasciitis and heel spurs.
- MedlinePlus, U.S. National Library of Medicine. Heel pain.
- American College of Foot and Ankle Surgeons.