Several conditions affect the elbow area. The three most common are "lateral epicondylitis" (tennis elbow), "medial epicondylitis" (golfers' elbow), and medial collateral ligament sprain (throwers' elbow).

The first two conditions are very similar, however the first affects the outside of the elbow (lateral), and the second affects the inside of the elbow (medial). I'll concentrate on medial epicondylitis, more commonly known as golfers' elbow.