Carpel Tunnel Syndrome is caused by entrapment of the medial nerve. The median nerve exits the brachial plexus and travels down the arm into the forearm wrist and hand.

So common symptoms to feel with this, whether it's entrapped in the elbow region or forearm or wrist is pain in that region in the forearm, into the fingers one to four, pins and needles in the same area which leads to loss of sensation, temperature and touch and weakness. So in more severe cases, you have motor impairment and some wasting of the muscles in the thumbs.

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