A TFCC injury is mainly caused by a traumatic impact when falling on the outstretched hand while having the wrist in hyperextension. This is often seen in young athletes and gymnasts. Other injuries occur when operating construction equipment such as power drills. Other causes for TFCC injuries include wrist overuse with repetitive flexion or pronation of the hand associated with heavy loads. In the elderly, the ligaments of the TFCC undergo spontaneous degeneration.