Nintendo thumb, also known as gamer's thumb and similar names, is a form of repetitive strain injury (RSI) caused by excessive playing video games with the traditional Nintendo controller. This injury mainly occurs due to repeated thumb movements while playing video games. The symptoms are blistering, paraesthesia (a tingling or burning feeling in the skin), and swelling of the thumbs, though any finger can be affected. This can lead to stress on tendons, nerves, and ligaments in the hands, and further onto lateral epicondylitis ("tennis elbow"), tendinitis (severe swelling of the tendon), bursitis (inflammation of the fluid-filled sac around joints), and carpal tunnel syndrome (compression of the median nerve at the wrist). Similar injuries can occur with other gaming systems, such as Pla