Heel spur is a thorn-like, bony protrusion of the heel bone, which can become inflamed through irritation, thus causing pain. A heel spur forms at the tendon attachments on the muscles of the heel bone as a result of micro-injuries to the tissue caused by overstraining. As part of the healing process for these micro-injuries, the body stores bone material in the tendon attachments as a repair mechanism. Heel spurs can develop over a very long period without causing major complaints. However, irritation of the area surrounding the ossified tendon attachment can cause inflammations. Left untreated, the inflammations can in turn lead to increased ossification and thus to permanent degradation with a risk of chronic manifestation. The normal rolling procedure that we all use when walking is then frequently no longer possible.