Bone spurs are formed mainly due to long-term chronic repeated bone damage, bone is also in the long-term repeated repair, resulting in bone hyperplasia, hyperplasia will protrude from the plane of the bone to produce bone spurs. After the removal of the bone spur, if there is still chronic strain or persistent injury, including the decrease in strength due to the degeneration of the bone, and if there is persistent bone damage in the weight-bearing area or the joint activity area, the cause of the bone spur will still exist, and the bone spur will still be produced. Therefore, bone spur is a protective growth, as long as the cause exists, even if the localized bone spur is removed, it will still recur.