Dual Epicondylitis is an inflammation, irritation or slight tearing of the tendons or muscles on both sides of the elbow. Both the extensor and flexor muscles are stretched and bowed causing stress on the tendons. Common symptoms include pain, swelling, redness or irritation on both sides of the forearm. Pain can extend down the elbow to the wrist and may be present during rest. Pain may also be experienced when gripping objects, turning your hand or swinging your arm. Can be caused by any number of sports or occupational activities involving repetitive use of the wrist and forearm, especially racquet sports and golf.