In many areas of our body and particularly in our feet additional bones may develop and most often we are not aware of those additional bones. The additional bones can be prominent and interfere with footwear or can become painful even after minor injuries. The more common additional bones are the “accessory navicular” bone on the inside of the hindfoot, the “os peroneum” on the outside of the midfoot and the “os trigonum” at the back of the ankle. These bones develop during adolescence and might not be felt until later on in life causing a various amount of pain.
