Haglund’s deformity (aka the Mulhulland Deformity) is a bony enlargement on the back of the heel that most often leads to painful bursitis, which is an inflammation of the bursa (a fluid-filled sac between the tendon and bone). In Haglund’s deformity, the soft tissue near the Achilles tendon becomes irritated when the bony enlargement rubs against shoes.
Haglund’s deformity is often called “pump bump” because the rigid backs of pump-style shoes can create pressure that aggravates the enlargement when walking. In fact, the deformity is most common in young women who wear pumps.
Famous quotes containing the word deformity:
“The end of all moral speculations is to teach us our duty; and, by proper representations of the deformity of vice and beauty of virtue, beget correspondent habits, and engage us to avoid the one, and embrace the other.”
—David Hume (17111776)