Edema of the top of the foot does not necessarily mean that a fracture has occurred, but a fracture of the foot in the early to mid-term will definitely appear edema of the top of the foot. Edema on the surface of the foot in the absence of injury, generally due to infection or gout, but also the presence of deep vein thrombosis of the lower extremities reflux limitation caused by edema on the surface of the foot; in the presence of obvious trauma, even if there is no fracture of the soft tissue damage will also appear edema, especially after the soft tissue injury, the local arterioles rupture, the degree of edema will be more pronounced, the serious cases can be seen in the tensor blisters. For foot fracture patients, the foot must appear edema, because no matter which part of the fracture will appear bleeding, with the prolongation of time bleeding will gradually increase, in about a week’s time edema can reach the peak, so simply from the edema to determine whether the fracture, which is not scientific, is the need for a clear imaging examination to be able to determine.