Pump Bump

Formally called Haglund deformity. An exostosis over the posterolateral aspect of the calcaneus caused by recurrent friction, ± bursitis
Cause Multifactorial—e.g., abnormal mechanics leading to excess motion of calcaneus, congenital deformity of calcaneus, irritation from women’s shoes known as ‘pumps’
Management Open-heeled/flat shoes, moleskin padding of calcaneus, cryomassage, orthotics to control excess motion; surgical excision
Exam Positive 2-finger squeeze test

Haglund's deformity

; retrocalcaneal exostosis; pump bump hypertrophy or prominence of posterior superior lateral border of calcaneum; characteristic of earlier Sever's disease, or chronic mechanical irritation from shoe counter against the heel during gait in a foot that overpronates at the subtalar joint (see compensated rearfoot varus; mobile pes cavus)
References in periodicals archive ?
The bums probably won't be a big deal as long as you're not planning to build a pump bump fight where they hang their hat.
Pump bump is the common term for a bony enlargement on the back of the heel.
In general, doctors prescribe anti-inflammatory medicines to treat pump bump.
Those with high arches or tight Achilles tendons are especially vulnerable to developing pump bump if they work in high heels.
In the large majority of cases, pump bump is treated non-surgically by reducing inflammation, but this does not get rid of the bony protrusion.
After a 50-foot downhill colon-cleanse, the fullpipe whips up into a 20-foot, stomach-spilling pump bump, then flushes down again into a 60-foot fullpipe called The Sewer.
Conveyor belts then whisk lacerated carcasses toward The Processor--a series of jarring pump bumps and launch ramps designed to dislodge any loose flesh.
On one especially brutal attempt, he caught sideways air off the first pump bump and ass-checked the second one before flopping into a heap.
Once you've made the plunge you then have to choose between plopping into the bowl to the left (not advised), careening into the bleachers on the right (even less advised), or going straight into a series of pump bumps (frighteningly, the only choice).
Other common problems include bunions, bony growths at the base of the big toe caused by tight, ill-fitting shoes, and so-called pump bumps, where straps and the rigid backs of pump-style shoes cause a bony enlargement on the heel.