The symptoms of tennis elbow include pain and tenderness in the bony knob on the outside of your elbow. This knob is where the injured tendons connect to the bone. The pain may also radiate into the upper or lower arm. Although the damage is in the elbow, you're likely to hurt when doing things with your hands.
Tennis elbow may cause the most pain when you:
Make a fist or grip an object, such as a tennis racket
Open a door or shake hands
Raise your hand or straighten your wrist.
Tennis elbow is similar to another condition called golfer's elbow, which affects the tendons on the inside of the elbow.
To diagnose your tennis elbow, your doctor will do a thorough exam. He or she will want you to flex your arm, wrist, and elbow to see where it hurts. You may also need imaging tests, such as an X-ray or MRI (magnetic resonance imaging) to diagnose tennis elbow or rule out other problems.
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