Fatigue fractures occur mainly in the lower part of the tibia and the metatarsal bones of the foot, especially the 1st and 5th metatarsal bones, because these parts are usually the parts of the lower limbs where the force is concentrated, and if a person walks with prolonged exertion or a sports player often has to do strenuous exercise with the lower limbs and does strenuous exercise for a longer period of time, it can easily lead to mild damage to the bone at an early stage, which will slowly form a slight fracture. If rest is not paid attention to at this time, it will gradually transition to a complete fracture of the bone and lead to breakage, swelling and pain. If you take rest after mild symptoms appear, the symptoms will not worsen progressively.