Extensor Digitorum Muscle: Arm, Elbow, Hand, Finger Pain
Extensor Digitorum

Extensor Digitorum Muscle: Arm, Elbow, Hand, Finger Pain

The extensor digitorum is located in the back of the forearm. It contributes to pain in the back of the hand and middle finger which sometimes radiates up into the back of the wrist and the back of the forearm. Pain is occasionally felt in the front of the wrist, just below the palm.

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Lumbrical Muscles of Hand: Hand and Finger Pain

The lumbrical muscles of the hand contribute to pain in the back of the hand and the fingers. Pain in the index finger and/or the little finger are most common. Stiffness in the finger joints mimics arthritis pain. Stiffness and pain when opening and closing the hand is also common.

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Extensor Indicis Muscle: Hand and Finger Pain

The extensor indicis muscle is located in the back of the forearm. It contributes to pain in the back of the wrist, hand, and 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
Flexor Pollicis Longus

Flexor Pollicis Longus Muscle: Thumb Pain

The flexor pollicis longus muscle is located in the forearm, same side as the thumb. It contributes to pain in the 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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Extensor Carpi Radialis Brevis Muscle: Pain In Forearm and Hand
Extensor Carpi Radialis Brevis

Extensor Carpi Radialis Brevis Muscle: Pain In Forearm and Hand

The extensor carpi radialis brevis muscle is located in the back of the forearm on the side of the thumb. It contributes to a burning pain in the back of the hand that sometimes extends up to the forearm. Twisting the wrist can cause excruciating pain. It also can cause a weakened unreliable grip.

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Coracobrachialis Muscle: Arm, Shoulder and Hand Pain
Coracobrachialis Muscle

Coracobrachialis Muscle: Arm, Shoulder and Hand Pain

The coracobrachialis muscle connects the shoulder to the upper arm. It can contribute to pain in the shoulder, back of the arm, and occasionally the middle finger. Pain is often felt when attempting to put your hand behind your back and or raising your arm over your head.

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