Haglund's deformity, also known as a Haglund’s deformity, is a common problem among individuals who play hockey, particularly those who wear Bauer skates. This can be a hard protrusion at the back of the foot, usually at the point where the tendon of Achilles links to the heel bone (calcaneus). What renders it particularly frustrating is the discomfort it causes. https://linkelephant.info/bauer-bump/