Marching fractures, also known as fatigue fractures, are mostly caused by long-term nonphysiological stress on the skeletal system and are most likely to occur in the tibia, metatarsus and radius, with no typical clinical history of trauma, and early radiographs are usually negative and easily missed or misdiagnosed. Fatigue fractures, which are prone to occur in areas of concentrated skeletal stress, are one of the common training injuries, with a high incidence in troop training, reported as 31% abroad and 16.9% in China. It is related to over-intensity training or improper posture, and mostly occurs during frequent long-distance running, cross-country training or overload training of a single course. In addition, it is also common in athletes who bear more weight on their feet, such as basketball, soccer, tennis, track and field, gymnasts and ballerinas, and in middle-aged and elderly people who often adhere to heavy exercise. The fracture of the trabecular bone occurs first and is repaired immediately after a minor injury with repeated localized concentration for a long time. The treatment is basically the same as that for violent fractures. If the fracture is not displaced or mildly displaced, it is treated with manual repositioning, fixation, and braking, followed by rehabilitation and functional exercise at a later stage. In more severe cases, with ossification of the severed end or the occurrence of osseointegration, the fracture is more difficult to heal and requires surgical incision and repositioning or external fixation in plaster. Fracture of the ulna is a fracture of the ulna. In the old days, it was common for the robber to hit the robbed person with a stick, and the robbed person raised his arm to cover the fracture of the ulna. Boxer’s fracture is a fracture that occurs in the metacarpal bone, usually in the 45th metacarpal. The distal end of the fracture is displaced to the palmar side and the dorsal side of the hand is angled. It is called a boxer’s fracture because boxers are prone to such injuries during competition. Hangman’s fractureAnatomical and forensic studies have shown that hangman’s fracture is primarily caused by the fracture of the second cervical vertebral arch, which is medically referred to as hangman’s fracture, also known as a hangman’s fracture. Hangman’s fractures do not only occur during hanging, but traffic accidents and various traumatic injuries can also cause such fractures. For those with painful neck trauma, without a clear diagnosis, the head should never be rotated at will as if it were a general sprain, a falling pillow, etc., so as not to cause spinal cord injury and the danger of severe paralysis and respiratory arrest. Pulled elbow is a subluxation of the small head of the radius in children. The disease is mostly caused by excessive pulling of the pediatric arm. The injured elbow may be in a semi-bending and flexion position, with pain in the lateral part of the elbow, the forearm is in a rotated position and hanging on the side of the body, and functional activity is impaired, especially not being able to rotate back, flex and extend and pick up objects, and there is obvious pressure pain at the radial tuberosity. It is easy to be mistaken for shoulder or wrist dislocation by parents. The treatment should adopt the method of pulling the elbow to reset or the method of hand-over-hand reset.