Fracture surgeries can cause bleeding, which may lead to excessive blood loss if not handled properly. Most of the fracture surgeries have different bleeding due to different surgical methods, different fracture locations, length of surgery and whether the blood vessels are damaged. 1. Different surgical methods: Generally, there are incision and internal fixation or minimally invasive treatment; incision and repositioning will cause more bleeding because of the large incision; minimally invasive surgery will cause less bleeding than incision and internal fixation because of the small incision. 2. Fracture location is different: generally for the lower end of femur fracture, distal humerus fracture, can use tourniquet fracture, its bleeding is also relatively reduced. However, for femur and proximal humerus fractures where tourniquet is not available, the bleeding will increase accordingly. 3. Length of operation time: the length of operation time also determines the amount of bleeding, generally long operation time, the location of the fracture incision is rich in blood flow will also lead to increased bleeding. 4. Whether there is damage to blood vessels: many fractures will cause arterial damage during the fracture, and the amount of bleeding will be increased accordingly during the operation. There are many factors affecting the amount of bleeding in orthopedic surgery, and surgical treatment itself is a kind of trauma, which inevitably has its limitations and risks. Specific surgical complications and risks should be evaluated after a thorough and comprehensive analysis by the surgeon.