After ligament injuries, the common imaging examinations usually include standard X-rays, CT scans, and MRI. X-rays are mainly used to observe the overall shape of the bones and the alignment, CT scans are primarily for examining the condition of the bones at the injury site, especially the form of the bones, while MRI mainly uses the hydrogen atom content, or water content, to determine if there is an injury. When a ligament is injured, there won't be bleeding, which leads to an increase in water content; thus, an MRI can easily reveal the increased water content and help diagnose the injury. Therefore, the best method to diagnose ligament injuries is through MRI. Of course, X-rays are used for general overview and alignment, which are the most basic and common examinations, followed by CT scans. Generally, CT scans are not necessary unless there is a special circumstance.