The principles of treatment for multiple injuries are, in general, to preserve life first, and then to preserve the patient’s normal cognitive ability and limb function as much as possible. The principle followed in the middle of the resuscitation process of multiple injuries is to treat and diagnose at the same time. Because multiple injuries result in injuries to multiple sites, some injuries to sites that are not life-threatening may be missed in the early diagnosis process. For example, while rescuing a pelvic fracture, the patient may have a fracture of a toe, and the fracture of the toe is missed, but it does not have a significant impact on the whole rescue process, so it cannot be called a failure of treatment. In the middle of the subsequent treatment process, in the middle of the diagnosis process, it is allowed in the treatment process as long as the potential injury is detected in time and does not eventually lead to serious consequences.