Medial epicondylitis is also known as golfer's elbow, baseball elbow, suitcase elbow, or forehand tennis elbow. It's characterized by pain from the elbow to the wrist on the inside (medial side) of the elbow. The pain is caused by damage to the tendons that bend the wrist toward the palm. A tendon is a tough cord of tissue that connects muscles to bones. Medial epicondylitis is caused by the excessive force used to bend the wrist toward the palm. Other possible causes of medial epicondylitis include: Serving with great force in tennis, Weak shoulder and wrist muscles, Using a too tightly strung, too short, or too heavy tennis racket, Throwing a javelin and Carrying a heavy suitcase.
The most common symptom of medial epicondylitis is pain along the palm side of the forearm, from the elbow to the wrist, on the same side as the little finger. The pain can be felt when bending the wrist toward the palm against resistance, or when squeezing a rubber ball.