Medial epicondylitis is pain over the bone on the inner side of the elbow. The piece of bone that can be felt on the inner side of the elbow is called the medial epicondyle. When the tendons attached to this bone are overstretched or torn, they can become painful. This is called tendinopathy.

Medial epicondylitis is commonly called golfer's elbow, but it is not restricted to people who play golf. It can occur in tennis players and other people who repeatedly grip objects tightly.

Medial Epicondylitis
Nucleus factsheet image
Copyright © Nucleus Medical Media, Inc.

Golfer's elbow is caused by overusing the flexor muscles of the forearms. Overusing these muscles can stretch or tear the tendons attached to the medial epicondyle.

Causes include:

  • Improper golf swing technique or grip of golf clubs
  • Wrong model of golf clubs
  • Improper technique for hitting a tennis ball
  • Improper size of tennis racquet or tension of racquet strings
  • Doing certain arm motions too much, such as:
    • Golf swings
    • Tennis strokes (forehand or serve)
    • Painting
    • Raking
    • Pitching
    • Rowing
    • Using a hammer or screwdriver