Rib fractures can usually be detected by taking X-rays, but if the X-rays do not confirm the fracture but there is still suspicion, a CT scan is needed as follows: First, for most patients with rib fractures, taking X-rays is sufficient to detect the presence of the fracture. X-rays can show rib fractures and misalignments, while some well-positioned rib fractures are less likely to be detected, but still The presence of a rib fracture is doubtful. Second, if the rib fracture is undisplaced, which cannot be confirmed by radiographs, further CT scans are required, which can reveal the rib cortical fracture by CT cross-sectional scans. If the CT scan is not effective, a three-dimensional CT scan can be performed, which allows the fracture to be observed on all sides of the rib in a three-dimensional level, ultimately identifying the rib fracture and providing an important reference for surgery.