Joint injuries have been known to be traumatic at the time of occurrence, but then it may seem like they go away. However, new evidence demonstrates that old joint injuries have the ability to create arthritis in that specific joint later on in life. The most common of these is an old sports injury in high school or an injury from an automobile accident. As many as 15% of people who have been diagnosed with osteoarthritis, may have developed joint problems as a result of past injury or post-traumatic arthritis (6). Even if the alignment is restored, a bone fracture can cause a disruption in the gliding action that occurs in the joint, therefore increasing your chances of developing arthritis in the future. The same thing is possible with ligament or tendon injuries. After healing, damage to the cartilage may feel pain-free and may not even be noticeable, but it is impossible to be aware of the damage that occurred to the cartilage. Years later, after further degeneration occurs to the same spot, osteoarthritis will most likely set in and trouble the area with its terrible symptoms and pain. This is another linking factor to age as a general cause of osteoarthritis. The injuries may have happened when we were young, but they may come back to haunt us and create problems in our later years.