Arm Muscles

Extensor Indicis Muscle: Hand and Finger Pain

The extensor indicis muscle contributes to pain in the back of the wrist, hand, and the index finger. The pain will often feel like you have sprained or strained the back of the hand. It can also cause charley horse like cramps in the index finger.

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Flexor Pollicis Longus Muscle: Thumb Pain

The flexor pollicis longus muscle contributes to pain in middle joint and tip of the thumb. Pinching motions between the forefinger and thumb can cause intense pain. It can also cause the middle thumb joint to pop and sometimes lock.

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Pronator Teres Muscle: Forearm, Wrist, Thumb Pain

The pronator teres muscle can contribute to pain in the wrist near the thumb. Pain is often felt in the thumb pad and can extend up into the forearm. Cupping the hand can cause become almost impossible because of intense pain in the wrist and or thumb pad.

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Anconeus Muscle: Elbow Pain

The anconeus muscle contributes to pain in the elbow. Pain is most pronounced when straightening the elbow. It is a prime contributor to tennis elbow and affects golfer’s non-dominant elbow.

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Supinator Muscle: Elbow and Thumb Pain

The supinator muscle can contribute to pain in the elbow, forearm, and back of the hand at the base of the thumb. It can also contribute to numbness and tingling in the thumb side of the hand.

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Brachialis Muscle: Arm, Elbow, Thumb Pain

The brachialis muscle can contribute to pain in the upper arm, elbow, thumb pad and thumb. It can also cause tingling and / or numbness in the back of the forearm into the thumb. Bending and straightening the elbow is painful.

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