Golfer's elbow
Golfer's elbow (lateral epidondylitis or medial epicondylitis) is tendinosis (or more precisely enthesopathy) of the lateral or medial common flexor tendon and pronator teres muscle attachment on the inside of the elbow. It is similar to tennis elbow, which affects the outside of the elbow at the lateral epicondyle – a tendinopathy resulting from overload or repetitive use of the arm, causing an injury similar to ulnar collateral ligament injury of the elbow in "pitcher's elbow".