Haglund's Deformity: Why That Bump on the Back of Your Heel Keeps Getting Worse
It often starts with one pair of shoes. They fit fine for years, then one day the back of your heel feels raw after wearing them. A few weeks later, there is a firm, red, tender bump there, and now several pairs of shoes are off the table.
That bump has a name: Haglund's deformity. People also call it "pump bump" because stiff-backed shoes like dress pumps are a classic cause. It is one of the more common reasons people come in with pain at the back of the heel rather than the bottom.
The good news is that most cases settle down without surgery, especially when they are caught early. The catch is that the bump itself does not go away on its own, so the goal is to stop it from being irritated.
What is actually happening
Haglund's deformity is an enlargement of the back of the heel bone (the calcaneus), at the spot where the Achilles tendon attaches. The bone there sticks out more than it should. Every time the back of a firm shoe presses against it, the soft tissue caught in between gets irritated.
Two structures sit right in the firing line. The Achilles tendon runs directly over the bump, and a small fluid-filled cushion called the retrocalcaneal bursa sits between the tendon and the bone. Press on them day after day, and they inflame. That is when the rubbing turns into genuine pain. Because these structures are packed so closely together, irritation rarely stays in one place.
When the bony bump, the bursa, and the Achilles tendon are all involved, it is sometimes called Haglund's syndrome rather than just the deformity.
Why it develops
Haglund's deformity usually develops slowly, not from a single injury. It tends to come from a combination of your foot's structure and the shoes you wear.
Some people are simply more prone to it. A naturally prominent heel bone, high arches, or a tight Achilles tendon all push the back of the heel harder against the shoe with every step. Walking more on the outside of the foot does the same.
Then there is footwear, which is the part you can actually change. Any shoe with a rigid, unforgiving back can be the trigger: dress pumps and high heels, stiff men's dress shoes, and notably ice skates and stiff hiking or work boots. The "pump bump" nickname stuck because of high heels, but the skate connection matters in a hockey town and is called skater’s heel..
What patients usually notice
The pattern is fairly consistent:
Tenderness at the back outside of the heel, worse in certain shoes
A visible, firm bump that develops over time
Redness or swelling after activity, and sometimes blisters where the shoe rubs
Stiffness or soreness in the Achilles tendon itself
Pain that eases when you switch to a backless or soft-backed shoe
Many people quietly rearrange their shoe rotation to avoid the pressure long before they come in. That workaround is often the first real sign that the bump is becoming a problem rather than a nuisance.
It is worth noting what this is not. Pain on the bottom of the heel, points more towardplantar fasciitis, which is a different problem with different treatment. Part of the value of an exam is sorting out which one you are actually dealing with.
How is it diagnosed
Diagnosis starts with a hands-on exam of the foot and ankle: the shape of the heel, how the foot moves when you walk, and whether the Achilles tendon is tight or inflamed.
A lateral X-ray is usually the key test because it shows the contour of the heel bone clearly and confirms the bony prominence. It also helps separate how much of the pain is coming from bone pressure versus inflamed soft tissue, which matters because the two are treated a little differently. In some cases, an ultrasound and or MRI is used to examine the tendon and bursa more closely.
Treatment options
Treatment aims to relieve pressure on the back of the heel and calm the irritated tissue.
Conservative care cannot remove the bone, but for most people, it controls the symptoms well.
Common non-surgical steps include:
Footwear changes. This is the single most important treatment. Softer or open-backed shoes, or styles with a different heel shape, remove the source of the rubbing.
Heel pads or protective sleeves. These cushion the bump and cut friction while the tissue settles.
Heel lifts. Slightly raising the heel can reduce how hard the bump presses against the back of the shoe.
Custom orthotics. Correcting foot mechanics reduces the abnormal pressure that loads the back of the heel in the first place, which is why orthotics address the cause rather than just the symptom.
Calf and Achilles stretching. Easing tension in a tight Achilles takes some of the pull off the heel.
Ice and anti-inflammatory measures. Applying ice after activity and reducing
inflammation helps the bursa and tendon recover.
A note on cortisone injections: they are generally used with caution around the Achilles, because injecting steroid into or near the tendon can weaken or rupture it. That is a decision to make carefully with your podiatrist, not a routine first step.
When surgery is considered
If the pain persists despite a fair trial of conservative care, surgery may be discussed. The procedure reshapes the back of the heel bone and removes the bony prominence, and it sometimes includes repairing the Achilles tendon if it has been damaged by the chronic rubbing. The aim is to remove the pressure for good. Recovery typically runs many months till strength and walking return.
Surgery is the exception, not the rule. Most cases of Haglund's deformity respond to conservative treatment, particularly when they are addressed before the tendon and bursa are badly involved.
When to have it looked at
If you have a persistent bump on the back of your heel, pain in certain shoes, or swelling around the Achilles tendon, it is worth having it assessed. Catching it early often keeps a minor irritation from turning into a chronic one, and it keeps more of your shoe collection in play.
