The top of the foot is smashed and swollen will be fractured, because the top of the foot muscle is relatively small, only a thin layer of skin, external force on the top of the foot, directly on the bone, it is easy to fracture. The patient should take an orthopantomogram or CT film of the foot at an early stage to clarify whether there is a fracture, as well as the location of the fracture and the extent of the fracture.