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Haglund’s Deformity – All You Need To Know

Haglund’s deformity is a bony enlargement on the back of the heel.

The foot condition is found where the Achilles tendon attaches to the heel. The enlargement can lead to bursitis, an inflammation of the bursa (a fluid-filled sac between the tendon and bone).

Haglund’s deformity is often known as “pump bump.” Originally, doctors gave the condition this name because women who wore high heels were often observed to have Haglund’s. This is generally a myth as high heel wearers and non-wearers alike can get the condition, which was first coined by Patrick Haglund in 1927. Still, the term continues to be used today.


Although Haglund’s deformity is considered a common clinical condition, it’s “still poorly understood.”

Friction between the Achilles heel and the shoe contributes to Haglund’s. Beyond your shoes, it could be because of wearing ice skates or any stiff-backed footwear. This friction causes inflammation of where the Achilles attaches to the heel and a bone spur forms. Over time, the bone spur (a bony enlargement) irritates the bursa.

Typically, friction along the Achilles heel is the result of two things. First, overuse. Runners are particularly susceptible to Haglund’s deformity because of high mileage. Specifically, long-distance runners are prone to getting the bone spur.

Second, improper footwear can lead to Haglund’s deformity. If your shoes are too tight, your Achilles will rub excessively against the back of the shoe. Over time, bone spurs develop as a self-defence mechanism.

Additional causes may include:

  • High arch
  • Tight Achilles tendon
  • Tend to walk or run on the outside of your heel

Overall, there are several risk factors involved with Haglund’s deformity but pinpointing a cause can be difficult. While external factors may increase your likelihood of having the condition, your foot structure as determined by your genetics may also come into play.


Beyond pain, Haglund’s deformity is one of the few foot conditions that you can visibly see.

Typically, your Achilles heel will have a bump indicating a bone spur. The enlargement feels rigid, as it’s a bone, and can grow over time. Since bone spurs are progressive conditions, meaning they won’t get any better even if treated, addressing the true cause is crucial to prevent additional friction.

Common symptoms may include:

  • A bump on the back and outside of the heel
  • Inflammation
  • A callus
  • A clicking sensation when you press on the bump


As conditions that affect the Achilles tendon can be quite similar, diagnosing Haglund’s deformity can be difficult.

Fortunately, because of the presence of the bone spur, the appearance of your heel can differentiate Haglund’s from other Achilles conditions, like tendonitis. If in doubt, contact a healthcare professional for a diagnosis, and to have X-rays or an MRI, if required.


Generally, and we’ve written about this before, surgery should be a last-resort option if non-invasive treatments fail. First, consider the following:

  • Proper shoes (we at Feet First Clinic offer a free shoe fitting)
  • Anti-inflammatories
  • Icing
  • Self soft tissue massage
  • Custom Foot Orthotics

If none of the above treatments work, surgery may be your best and last option. During surgery, the doctor removes the bone spur from your heel, or it can be smoothed and filed down. This reduces the volume of the bone in the area and also frees up your bursa.

Removal of the enlargement also means that you may be less prone to the area rubbing against the back of your shoe.

Recovery is typically 8-10 weeks. In fact, a number of long-distance runners opt to have surgery for Haglund’s in the offseason. This illustrates that, if done correctly, surgery and a proper recovery plan can improve your quality of life if non-surgical options don’t work.

For most, walking is still possible with an air cast. This way, you can still move as you normally would, but reduce the weight-bearing component on your one leg (or both).

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Carolina Charles

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If you’ve been to the clinic before, chances are you had the pleasure of meeting Carolina! Carolina’s daily goal is going above and beyond to make sure patients are always completely satisfied. Having worked in the podiatry industry for 22 years, Carolina brings a wealth of knowledge pertaining to client service, insurance policies, and procedures.​ She steers the ship to make sure everything runs smoothly on the daily. Carolina is known for spicing up every outfit with her signature costume jewellery.