Haglund’s deformity is also known as a “pump bump”. This deformity is the enlargement of the posterior part of the heel bone and soreness of the skin over the boney lump. Often there is a painful blister. The boney bump usually grows during teenage years, when the growing heel bone can be rubbed by footwear, usually sports shoes, causing increased blood flow to the bone. This leads to excessive bone growth. Provide support to the affected joint with an elastic bandage or dressings. This type of compression will also help reduce swelling. Ensure that the bandage is not too tight to affect blood circulation to the foot.