Soreness in the back of the foot without serious trauma is not a fracture. Fractures are caused by long-term exertion caused by fatigue fractures or serious trauma, such as falls, sprains, smashes cause pain in the back of the foot, and the pain of the fracture is sharp pain, swelling is more serious, there will be deformity, there may be limited activities, and the back of the foot soreness is not quite consistent, so the back of the foot soreness is not a fracture. The soreness of the back of the foot may be: 1. plantar fasciitis, because of long-term walking, strain or bad posture, climbing, climbing stairs, sedentary, standing, etc. 2. you can pay attention to whether there is local redness, heat, swelling, and you need to exclude gout and dermatitis infection of the back of the foot. If there is long-term foot and back pain, especially after heavy training or long-term exertion, you need to take a film to exclude the above-mentioned fatigue fracture.