In the wrist, the median nerve connects from the brain and spinal cord down to the tips of your fingers.  Carpal Tunnel Syndrome develops when the median nerve is compressed. 

The median nerve passes through the carpal tunnel ligament.  When there is pressure on the carpal tunnel, it causes compression of the median nerve.   On one side of the carpal tunnel is a bone and on the other side is an inflexible ligament.   When there is compression on the median nerve , it has no where to move.  The median nerve gets “squished.”

When the median nerve is compressed is does not work properly.  The improper function of the nerve causes pain, numbness, tingling and weakness in the hand.  

In advanced cases of carpal tunnel syndrome, the thenar muscles (the fleshy area near the base of the thumb) shrink (atrophy) and the strength and dexterity of the entire hand will decrease.

 

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