I remember co-worker who had a Jones fracture in the fifth metatarsal in the foot. But I had no idea how tricky the correct diagnosis of a break of that bone was and how much the treatment could differ.
I do remember it took him a long time to heal.
Where is the fifth metatarsal (toe bone)? It is the thin bone on the outside of the foot. It can be slow to heal because the blood circulation is not great there.
After reading this article I am likely to want a second opinion if I happen to have this injury since it is just one centimeter of difference between a simple healing and winding up on crutches and maybe a cast.