Haglund’s Deformity: Causes, Symptoms & Modern Treatment Options

Haglund’s deformity - often called a “pump bump” - is a painful bony enlargement at the back of the heel where the Achilles tendon attaches. It’s especially common in active adults, runners, and people who wear stiff-backed shoes. When the bony prominence rubs against footwear, inflammation and pain quickly follow.

If you’re experiencing heel pain or a hard lump at the back of your heel, understanding this condition is the first step to getting long-term relief.

What Is Haglund’s Deformity?

Haglund’s deformity occurs when a bony prominence forms on the posterosuperior part of the calcaneus (heel bone). This bump irritates the nearby soft tissues, particularly the retrocalcaneal bursa and the Achilles tendon, causing pain, swelling, and sometimes bursitis or thickening of the Achilles tendon.

It often develops gradually over years, although symptoms can flare rapidly when activity levels increase.

Common Causes

Multiple factors contribute to Haglund’s deformity:

1. Foot Structure

Certain foot types are more prone to creating friction at the heel:

• High arches (cavus feet)

• Tight Achilles tendon

• Varus heel alignment (heel tilting inward)

2. Footwear Irritation

Shoes with:

• Stiff heel counters

• Narrow or high-heeled backs

• Rigid running shoe structures…can aggravate the deformity.

3. Repetitive Stress

Sports like running, netball, football, padel, and hockey place repeated tension on the heel and Achilles tendon.

4. Genetic Predisposition

Some individuals naturally develop more prominent heel bone shapes.

Symptoms to Watch For

Typical signs include:

• A noticeable bump at the back of the heel

• Pain when walking, running, or wearing closed shoes

• Redness or swelling around the Achilles insertion

• Stiffness, especially first thing in the morning

• Pain that worsens in shoes but eases in sandals

Left untreated, the irritation can progress to chronic Achilles tendon problems.

Diagnosis

A podiatrist or foot specialist will usually:

• Take a detailed history of symptoms

• Examine your foot structure, gait, and footwear

• Use imaging (X-ray, ultrasound) to assess the heel bone shape and soft-tissue inflammation

The combination of clinical exam and imaging helps determine the stage and best treatment approach.

Non-Surgical Treatment Options

Most people recover well without surgery. Key therapies include:

1. Custom Foot Orthotics (Insoles)

Custom insoles help by:

• Correcting heel alignment (reducing friction at the bump)

• Reducing Achilles strain

• Redistributing pressure during walking and running

Footworxco’s custom insoles are designed to offload the posterior heel, making this one of the most effective conservative treatments.

2. Footwear Modifications

Switch to:

• Soft-backed shoes

• Heel-lifted trainers

• Avoid narrow or rigid heel counters

Heel lifts inside shoes can temporarily reduce Achilles tension.

3. Activity Adjustments

• Reduce impact sports temporarily

• Add stretching and strengthening to your routine

4. Achilles Stretching & Mobility Work

Improving calf and Achilles flexibility decreases pulling on the heel and reduces irritation.

5. Icing & Anti-Inflammatory Therapy

Icing the heel for 10 to 15 minutes after activity helps calm inflammation.

When Is Surgery Needed?

If conservative treatments don’t reduce symptoms after several months, surgery may be considered. Surgical options typically involve:

• Removing the bony prominence

• Repairing or reattaching the Achilles tendon if needed

• Treating severe bursitis

Recovery from surgery can take 3 to 6 months, depending on the extent of the procedure.

How Footworxco Insoles Support Haglund’s Deformity

At Footworxco, our insoles are specifically engineered to:

• Control heel motion

• Reduce pressure on the back of the foot

• Improve calf-Achilles mechanics

• Support long-term pain reduction and performance

Whether you're a runner, recreational athlete, or someone on their feet all day, custom orthotics offer a powerful, non-invasive solution.

Final Thoughts

Haglund’s deformity can be frustrating and painful, but with the right approach, relief is absolutely possible. By combining footwear changes, stretching, and properly structured custom insoles, you can dramatically reduce pain and prevent flare-ups.

If you’re noticing a bump at the back of your heel or struggling with Achilles irritation, reach out for a professional foot assessment. Small changes make a big difference in long-term comfort and performance.

Frequently Asked Questions About Haglund's Deformity

What causes Haglund’s deformity?

Haglund’s deformity is caused by a combination of foot structure, repetitive stress, and footwear irritation. High arches, tight Achilles tendons, and stiff-backed shoes increase friction at the back of the heel, leading to bone enlargement and inflammation over time.

Is Haglund’s deformity the same as Achilles tendonitis?

No. While the two conditions are closely related, Haglund’s deformity refers to a bony enlargement of the heel, whereas Achilles tendonitis involves inflammation of the Achilles tendon. Haglund’s deformity can, however, contribute to Achilles tendon pain if left untreated.

Can Haglund’s deformity be treated without surgery?

Yes. Most cases of Haglund’s deformity respond well to non-surgical treatment, including custom foot orthotics, footwear changes, activity modification, stretching, and inflammation management. Surgery is usually only considered when conservative treatment fails.

Do custom insoles help Haglund’s deformity?

Custom insoles are one of the most effective conservative treatments for Haglund’s deformity. They improve heel alignment, reduce Achilles tension, and decrease pressure on the back of the heel, helping relieve pain and prevent further irritation.

What shoes are best for Haglund’s deformity?

Shoes with a soft or padded heel counter, slightly elevated heel, and good arch support are best. Avoid stiff-backed shoes, narrow heels, and high-friction materials that rub against the heel bump.

How long does Haglund’s deformity take to heal?

Recovery time varies depending on severity and treatment. With proper conservative care, many people experience improvement within 6 to 12 weeks. Long-term management with supportive footwear and custom insoles is often required to prevent recurrence.

Can running make Haglund’s deformity worse?

Yes. Running increases repetitive stress on the heel and Achilles tendon, which can worsen symptoms if underlying biomechanical issues are not addressed. Proper footwear, training modification, and custom orthotics can allow many runners to continue training safely.

Should I see a medical practitioner for Haglund’s deformity?

Yes. A podiatrist can accurately diagnose Haglund’s deformity, assess your foot mechanics, and create a personalised treatment plan, including custom orthotics to address the root cause of heel pain.