Haglund’s Deformity (Pump Bump) in Singapore

Written & reviewed by the BestDoctors.sg editorial team · Last updated 24 Aug 2026 · General information, not medical advice

A hot, very red, swollen heel with fever, a sudden “pop” with an inability to push off (possible Achilles rupture), or an open sore over the bump — especially with diabetes — needs prompt care.

Why it develops

The bony prominence rubs against the rigid heel counter of shoes, and this friction and pressure can inflame the retrocalcaneal bursa (a fluid-filled cushion between the heel bone and the Achilles tendon) and irritate the tendon insertion. When the bump, bursitis and Achilles irritation occur together it is sometimes called Haglund’s syndrome, and it often affects both heels.

Common causes

Footwear with rigid or hard heel counters — pumps, high heels, stiff dress shoes, skates or ski boots — is a leading factor. Foot shape matters too: a naturally prominent heel bone, a high arch that tilts the heel so the bump is more prominent, and a tendency to walk on the outside of the foot. A tight Achilles tendon or calf muscles increases pressure at the insertion, and an inherited foot shape plays a part. The classic “pump bump” is often described in middle-aged adults and, because of heeled footwear, in women.

Symptoms

There is usually a visible, firm bump at the back of the heel, with pain especially when wearing shoes and during or after walking or running. Redness, swelling and tenderness develop over the bump where the shoe rubs, sometimes with a callus. Pain is often worse when starting to walk after rest and with stiff-backed shoes, and may ease in open-back shoes; there may be Achilles-region discomfort if the tendon and bursa are irritated.

Red flags

Some features are not simple footwear rub and need prompt review: a heel that is hot, very red and swollen with fever or feeling unwell (possible infection); sudden severe pain, a “pop,” an inability to push off or rise on tiptoe, or a gap in the Achilles (possible tendon rupture); pain at rest or at night, or a rapidly enlarging lump; an inability to bear weight; or an open or ulcerated area over the bump, especially in people with diabetes or poor circulation.

How it is assessed and treated

Diagnosis is mainly clinical — the history and an examination of the bony bump, tenderness, swelling, calf tightness and the Achilles insertion. X-rays show the bony prominence and its shape, and ultrasound or MRI may assess the bursa and tendon. A GP, podiatrist and physiotherapist manage footwear, padding, orthoses and stretching, with a foot-and-ankle orthopaedic surgeon for resistant cases. Conservative care is the cornerstone: avoiding rigid, hard-backed shoes, pumps and high heels, and choosing soft-backed, open-back or well-padded shoes that do not press on the bump; heel pads or lifts to reduce rubbing; orthoses, especially for high-arched feet; and calf and Achilles stretching with physiotherapy. Ice after activity and short-term pain relief help. Steroid injections directly into the Achilles tendon are generally avoided because of rupture risk. Surgery is reserved for cases that fail an adequate period — often around six months — of conservative treatment, and may involve removing the bony prominence, the bursa, or debriding and reattaching the Achilles insertion; it needs a recovery period and rehabilitation, and is a specialist decision.

Footwear habits that calm the pump bump

Because the pain comes largely from a shoe rubbing on the bony bump, footwear choices do much of the work. Favour soft-backed, open-back or well-padded shoes and avoid rigid heel counters, pumps and high heels that press on the prominence; where a firm back is unavoidable, a heel pad or a slightly raised heel can reduce the rubbing and take tension off the Achilles. Alternating between different pairs of shoes spreads the pressure differently through the week, and breaking in new shoes gradually avoids a sudden flare. A regular calf and Achilles stretching routine helps, since a tight tendon increases pressure at the insertion, and for a high-arched foot an orthosis can improve the heel’s position. Icing after activity and easing off aggravating exercise during a painful spell allow the irritated soft tissue to settle. These measures do not remove the bony bump, but by stopping the friction they control the pain well for most people, which is why footwear change is the first and most important step.

When to see a doctor

See a doctor if heel pain or a tender bump persists despite footwear changes and simple measures, or limits walking, work or exercise, or if there is recurrent redness, swelling or a callus over the back of the heel. Seek urgent care for any red flag — signs of infection, a suspected Achilles rupture, an inability to walk, or an ulcer over the bump, especially with diabetes.

Related foot & ankle topics

• Hammer, claw & mallet toe
• Metatarsalgia (ball-of-foot pain)
• Tarsal tunnel syndrome
• Sever’s disease (children’s heel pain)
• Posterior tibial tendon dysfunction
• Peroneal tendinitis
• Plantar fibroma
• Chronic ankle instability
• Corns & calluses
• Plantar fasciitis
• Ankle sprains
• Orthopaedic (foot & ankle) surgeons

Sources

• Cleveland Clinic — Haglund’s Deformity: clevelandclinic.org
• American Podiatric Medical Association — Haglund’s Deformity: apma.org
• Hospital for Special Surgery — Haglund’s Deformity: hss.edu
• Foot Health Facts (ACFAS) — Haglund’s Deformity: foothealthfacts.org