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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Brachioradialis Muscle: Elbow, Forearm, Thumb Pain

The brachioradialis is located on the outside of the arm and is a contributor to tennis elbow. It can cause pain on the outside of the elbow, forearm and often descends down into the wrist and thumb. It can contribute to numbness around the thumb as well as a weakened grip.

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