The elbow is a joint that connects the humerus bone of the upper arm with the radius and ulna bones of the lower arm through a complex network of muscles, ligaments, and tendons. More than a simple hinge, the unique arrangement of these tissues also allows for rotation.
Common athletes injuries of the elbow include flexor tendinitis, ulnar collateral ligament (UCL) injury, valgus extension overload (VEO), olecranon stress fractures and ulnar neuritis.
Soreness or pain felt on the outside (lateral) part of the elbow may be tennis elbow (lateral epicondylitis). This is the most common type of tendinopathy that affects the elbow and most often is caused by overuse of the forearm muscles.
You may also get tendinitis from overuse of the elbow. Other causes of elbow pain include sprains and strains, fractures (broken bones), dislocations, bursitis, and arthritis.