Heel Pain: All Causes, Diagnosis and Treatment Options

To learn more, consult the guide on Ankle Pain Without Trauma: Causes and Physiotherapy. To learn more, consult the guide on Foot and Ankle Pain: Complete Guide and Treatment. To learn more, consult the guide on Achilles Tendinitis: when every step becomes a challenge.

Heel pain, medically known as talalgia, is one of the most common and debilitating musculoskeletal problems affecting the lower limb. This condition can drastically limit the ability to walk, run, or simply stand, severely impacting daily quality of life and sports performance. When investigating the causes of heel pain, risk factors intertwine in a clinical picture that requires careful biomechanical and anatomical evaluation. There is no single origin for this symptom: the structures involved can be of bone, tendon, fascial, nervous, or systemic nature.

Understanding the exact etiology of the pain is the first fundamental step to setting up an effective therapeutic path. Relying on self-diagnosis or generic remedies often leads to the problem becoming chronic, making recovery much longer and more complex. This article thoroughly explores the anatomy of the calcaneal region, the most frequent pathologies, diagnostic pathways, and the best conservative and physiotherapeutic treatment strategies based on the latest scientific evidence.

Anatomy and Biomechanics of the Heel

The heel’s anatomy comprises the calcaneus bone, surrounding soft tissues, and the plantar fascia; biomechanics examines how these structures move and absorb forces during weight-bearing activities. To fully understand the dynamics that lead to the onset of pain, a brief mention of the hindfoot anatomy is necessary. The heel is mainly composed of the calcaneus bone, the largest bone in the foot. The calcaneus plays a crucial role in the biomechanics of walking: it is the first structure to absorb impact with the ground during the stance phase (heel strike) and acts as a fulcrum for propulsion during the push-off phase.

For a complete overview, see the comprehensive guide to foot and ankle pain.

Several fundamental structures anchor to or pass near the calcaneus:

• Plantar Fascia: A thick band of connective tissue that originates from the medial tubercle of the calcaneus and extends to the base of the toes. It supports the plantar arch and acts like a spring during walking.
• Achilles Tendon: The largest and strongest tendon in the human body, connecting the calf muscles (gastrocnemius and soleus) to the posterior portion of the calcaneus.
• Plantar Fat Pad: A specialized layer of adipose tissue, up to 2 centimeters thick, located under the calcaneus. Its function is purely shock-absorbing.
• Nerve Structures: The posterior tibial nerve and its branches (medial and lateral plantar nerves) run along the inner part of the ankle and heel.

An alteration in load, trauma, or degeneration of any of these structures can trigger acute or chronic painful symptoms.

The Main Causes of Heel Pain

The classification of pathologies affecting the heel is usually divided based on the location of the pain: plantar (under the heel), posterior (behind the heel), or diffuse. The most common causes are analyzed in detail below.

Plantar Fasciitis (or Plantar Fasciosis)

Plantar fasciitis is the most frequent cause of pain under the heel, responsible for about 80% of plantar talalgia cases. Despite the suffix “-itis” suggesting an acute inflammatory process, modern histological evidence shows that it is predominantly a degenerative process of collagen (fasciosis) due to repeated microtraumas and overload.
The pathognomonic symptom is acute pain, often described as a sharp stab or prick, which manifests with the first steps in the morning or after a prolonged period of rest. The pain tends to decrease with movement, only to flare up again at the end of the day or after intense exertion. Risk factors include obesity, calf muscle retraction, flat or high-arched feet, and the use of inappropriate footwear.

Heel Spur (Calcaneal Spur)

A heel spur is an exostosis, an abnormal hook-shaped bone growth, that develops on the underside of the calcaneus, precisely where the plantar fascia inserts. For decades, it was believed that the spur was the direct cause of pain, “stabbing” the surrounding tissues. Today, scientific literature has largely refuted this theory: the heel spur is a consequence of chronic traction of the fascia on the bone and not the cause of the pain. Many people have asymptomatic heel spurs visible on X-rays, while others suffer from severe plantar fasciitis without any bone spur. Therefore, treatment does not aim to “break” the spur, but to treat the underlying fascial dysfunction.

Achilles Tendinopathy

When pain is localized in the posterior part of the heel, the most probable cause is an insertional Achilles tendinopathy. This condition is characterized by pain, swelling, and stiffness at the exact point where the tendon attaches to the calcaneus bone. It is typical in athletes (especially runners and jumpers) but also affects sedentary, overweight individuals. The pain worsens with physical activity, climbing stairs, or walking uphill. In this case too, it is a process of failed tendon healing (tendinosis) rather than a simple inflammation.

Haglund’s Syndrome

Often associated with insertional Achilles tendinopathy, Haglund’s Syndrome (or Haglund’s deformity) is characterized by an abnormal bony prominence on the postero-superior portion of the calcaneus. This bony protrusion creates continuous friction against the Achilles tendon and the retrocalcaneal bursa, especially when wearing rigid shoes at the heel counter. The result is local pain, redness, and the formation of a visible callus.

Heel Bursitis

Bursae are small sacs filled with synovial fluid that act as anti-friction cushions between bones and tendons. In the heel, the most important ones are the retrocalcaneal bursa (between the calcaneus and the Achilles tendon) and the subcutaneous calcaneal bursa (between the tendon and the skin). Direct trauma or repeated friction can inflame these structures, causing bursitis. The heel appears swollen, warm, red, and exquisitely tender to palpation.

Tarsal Tunnel Syndrome

This is an entrapment neuropathy, similar to the more well-known carpal tunnel syndrome of the hand. It occurs when the posterior tibial nerve is compressed as it passes through the tarsal tunnel, a narrow anatomical passage located on the inner side of the ankle. Symptoms differ from classic musculoskeletal pain: patients report burning, tingling, electric shocks, or numbness radiating from the heel towards the sole of the foot and toes. The pain may worsen at night.

Calcaneal Stress Fracture

Stress fractures are not caused by a single violent trauma, but by the accumulation of repeated microtraumas that exceed the bone’s ability to remodel and repair itself. They are common in long-distance runners, military recruits, or individuals who drastically increase their training volume in a short time. The pain is deep, dull, progressively worsens with weight-bearing, and does not quickly alleviate with rest. Lateral palpation of the calcaneus (compression test) is very painful.

Plantar Fat Pad Atrophy

With advancing age, or due to repeated local corticosteroid injections, the fat pad located under the heel can thin out and lose its shock-absorbing capacity. This condition, known as fat pad atrophy, causes a dull, deep pain right in the center of the heel, which worsens when walking barefoot on hard surfaces (like tiles or parquet) and improves when wearing very cushioned shoes.

Sever’s Disease (Calcaneal Apophysitis)

If heel pain affects a child or adolescent (typically between 8 and 14 years old) who is very active in sports, the most probable cause is Sever’s Disease. During the growth phase, the secondary ossification center of the calcaneus (apophysis) is still cartilaginous and vulnerable. Repeated traction of the Achilles tendon on this immature area causes painful inflammation. It is a self-limiting condition that resolves with skeletal maturation but requires careful management of sports loads.

Systemic and Rheumatological Diseases

In a smaller percentage of cases, heel pain can be the initial symptom of a systemic pathology. Conditions such as rheumatoid arthritis, ankylosing spondylitis, psoriatic arthritis, Reiter’s syndrome, or gout can manifest with enthesitis (inflammation of tendon or fascial insertions) at the calcaneal level. If the pain is bilateral, associated with prolonged morning stiffness or other joint symptoms, a rheumatological evaluation is essential.

Associated Symptoms and Red Flags

Although most heel pain is benign and mechanical in nature, there are some symptoms that require immediate medical attention. It is essential to consult your doctor or physical therapist if you experience the following red flags:

• Total inability to bear weight on the foot.
• Acute pain that suddenly appeared after trauma or a jump (possible tendon rupture or acute fracture).
• Presence of severe swelling, excessive warmth, and diffuse redness.
• Fever associated with foot pain (suspicion of infection).
• Total numbness or loss of sensation in the foot.
• Constant night pain that does not change with position.
• Presence of diabetes with the appearance of ulcers or skin lesions on the heel.

The Diagnostic Pathway

Accurate diagnosis is the cornerstone of successful treatment. The diagnostic pathway always begins with a thorough clinical history. The healthcare professional will inquire about the characteristics of the pain (type, onset, duration, aggravating and alleviating factors), work and sports habits, type of footwear used, and any previous traumas.

The objective examination includes:

• Palpation: To identify the exact point of tenderness (e.g., medial tubercle for fasciitis, posterior insertion for tendinopathy).
• Biomechanical Evaluation: Analysis of foot posture (flat foot, excessive pronation, high-arched foot) and gait.
• Muscular and Joint Tests: Evaluation of strength, flexibility (especially ankle dorsiflexion mobility), and tension of the posterior muscle chain.
• Neurological Tests: Tinel’s sign to rule out tarsal tunnel syndrome.

Instrumental examinations are not always necessary in the initial phase but become useful to confirm a clinical suspicion or if conservative treatment does not yield results:

• Musculoskeletal Ultrasound: The first-choice examination for evaluating soft tissues. It allows measuring the thickness of the plantar fascia (values greater than 4 mm indicate fasciosis), evaluating the state of the Achilles tendon, and identifying any bursitis.
• X-ray (RX): Useful for ruling out fractures, evaluating the presence of heel spurs, Haglund’s deformity, or osteoarthritis of the hindfoot joints.
• Magnetic Resonance Imaging (MRI): Reserved for complex cases, suspected stress fractures not visible on X-rays, or for detailed evaluation of bone edema and deep soft tissue lesions.

Physiotherapy Treatment and Conservative Management

Treatment for heel pain is predominantly conservative. Surgery is considered only as a last resort, in a minimal percentage of cases that do not respond to months of well-conducted therapies. The modern approach deviates from simple absolute rest, instead promoting active load management.

Acute Phase Management

In the early stages of intense pain, the goal is to modulate the symptom. The modern PEACE & LOVE protocol has replaced the old RICE acronym. Protection of the area is recommended (reducing provocative activities such as running or jumping), Elevation if there is swelling, and patient Education to avoid excessive use of anti-inflammatory drugs that could inhibit natural tissue healing processes. Load must be optimized: not bed rest, but movement that does not cause acute pain.

Instrumental Physical Therapies

Physiotherapy uses advanced technologies to stimulate tissue regeneration:

• Radial or Focused Shockwave Therapy (ESWT): Represents the instrumental gold standard for chronic plantar fasciitis and Achilles tendinopathy. High-energy acoustic waves create controlled microtraumas that stimulate neoangiogenesis (formation of new blood vessels) and reactivate collagen repair processes.
• High-Power Laser Therapy (HILT): Useful for its analgesic and biostimulating effect, particularly indicated in acute phases and bursitis.
• Tecar Therapy: Helps improve deep vascularization and relax the calf and foot sole muscles.

Manual and Myofascial Therapy

The physical therapist’s manual intervention is crucial. Often, heel pain is a consequence of upstream tensions. Treatment includes:

• Myofascial release of the calf muscles (gastrocnemius and soleus) and hamstring muscles.
• Treatment of active Trigger Points that can radiate pain towards the heel.
• Joint mobilization of the ankle (tibiotalar joint) and subtalar joint to restore correct gait biomechanics, particularly improving dorsiflexion.
• Deep transverse friction massage (Cyriax) on fascial or tendon insertions, if indicated.

Orthotics, Braces, and Taping

Managing ground reaction forces is fundamental.

• Silicone heel cups: Useful in the early stages to cushion impact and slightly elevate the heel, relieving tension on the Achilles tendon.
• Custom orthotics: Made after a careful baropodometric examination, they are essential if the pain results from a structural alteration such as an excessively pronated foot or a fallen arch.
• Neuromuscular Taping or Functional Bandaging: The application of tape (such as LowDye taping) can provide temporary mechanical support to the plantar fascia, immediately reducing pain during weight-bearing.

Therapeutic Exercises for Heel Pain

Therapeutic exercise is the core of long-term rehabilitation. No passive therapy can replace the mechanical adaptation that tissues achieve through specific exercise. It is essential to perform these exercises under the guidance of your doctor or physical therapist to ensure correct execution and progression.

Stretching Exercises

Flexibility of the posterior chain is vital.

• Calf Stretch Against a Wall: Stand facing a wall, place your hands on it. Bring the leg to be stretched backward, keeping the knee straight and the heel firmly on the ground. Bend the front knee until you feel tension in the back calf. Hold for 30-45 seconds, repeat 3 times.
• Specific Plantar Fascia Stretch: Sitting, cross the painful leg over the other. Grasp the toes and gently pull them towards the shin, tensing the sole of the foot. With the other hand, massage the tense fascia. Hold for 30 seconds. This exercise is particularly effective if performed before getting out of bed in the morning.

Strengthening Exercises (Progressive Loading)

Degenerated tissues (fasciosis, tendinosis) need loading to remodel.

• Rathleff Protocol for Plantar Fasciitis: Standing on a step, place a rolled towel under your toes (to activate the windlass mechanism). Slowly rise onto the balls of your feet (concentric phase in 3 seconds), hold the top position for 2 seconds, and slowly lower (eccentric phase in 3 seconds). This high-load exercise stimulates new collagen synthesis.
• Intrinsic Muscle Strengthening (Short Foot Exercise): Sitting, barefoot, try to shorten the foot by bringing the forefoot closer to the heel, lifting the arch without curling the toes. Hold the contraction for 5 seconds. This strengthens the small muscles of the foot that support the arch.

Proprioception Exercises

Improving balance and neuromuscular control helps distribute loads better during walking. Balance exercises can be performed on one leg, first with eyes open and then with eyes closed, or using unstable surfaces such as wobble boards or soft cushions.

Prevention: How to Avoid Relapses

Once heel pain is resolved, prevention becomes the primary goal. Relapses are frequent if the triggering risk factors are not modified.

• Training Load Management: In sports, avoid sudden increases in intensity, duration, or frequency. Follow the “10% rule,” increasing training volume by no more than 10% per week.
• Footwear Choice: Avoid completely flat shoes (like ballet flats or flip-flops) for prolonged periods. Choose footwear with adequate arch support, good cushioning, and a slight difference in height between the heel and forefoot (drop). Replace running shoes every 600-800 km, as materials lose their shock-absorbing capacity.
• Body Weight Control: Overweight exponentially increases mechanical stress on the feet. Maintaining a normal Body Mass Index (BMI) is one of the most effective preventive strategies.
• Maintaining Flexibility: Regularly incorporate calf and plantar fascia stretching exercises into your daily routine, especially for those who perform jobs requiring many hours on their feet.

Frequently Asked Questions (FAQ)