Why does the back of my heel hurt?
Pain on the back of the heel is caused by either injury and inflammation of the Achilles tendon, a bone spur on the back of the heel, or a combination of both. The Achilles tendon is very strong, but it can degenerate and weaken, leading to inflammation and pain. This degeneration can also be caused because of tendon irritation by a bone spur located behind the tendon off of the heel bone. At other times, an abnormal enlargement of the heel bone can cause pain as it rubs against one’s shoe, without directly irritating the Achilles tendon.
If the Achilles tendon continues to degenerate, it can potentially rupture, which is a very serious injury that requires surgery.
Pain on the back of the heel should be treated promptly, as it can last for many years if allowed to continue untreated.