Overview A heel spur is a painful condition that is caused by the accumulation of excessive calcium under the heel of the foot. The heel bone is made up of a large structure called the calcaneus, which is connected to the bottom of the foo…

Overview Bone spurs (retrocalcaneal spur, or exostosis) can develop not only on the back of the heel, but also on the toes, mainly around the fifth (small) toe. Most often, they occur next to the toenail on the outside of the toe; on the i…