The signs of fracture displacement are not in the textbook, but personal experience has the following aspects to consider: 1. abnormal pain at the fracture site, for example, after reset or after surgery the pain has been reduced, there is little sensation or pain is not obvious, if there is suddenly more obvious pain, it is definitely an abnormal situation; 2. because the fracture is a transverse fracture or oblique neck fracture, you can use your thumb and index finger, the As a circular pressure, gently press the fracture site around a week, if there is obvious pressure pain, you can also consider that there is a fracture displacement; 3, more superficial fractures, local can feel the step feeling, that is, after the fracture dislocation surface is not flat, you can feel the feeling of going up the steps. If the above situation occurs, it is better to go to the hospital for examination, clear diagnosis and timely measures.