What could cause involuntary hand clenching? i've noticed that my husband is repetitively clenching his hands (in and open, clench. open, clench pattern). when i point it out to him, he is always unaware that he is doing it. it is very possible/likely th

Clenching : Clenching is not a symptom of carpal tunnel. A muscular problem may be associated with involuntary motion. Talk to a neurologist or the specialist recommended to aid in the diagnoses the muscle problem.

You : You say "involuntary", but from your description it sounds like he does it on purpose, but just isn't aware he is doing it. He might be responding to numbness or cramping in the hand from a nerve issue. If he has numbness, dexterity issues, or any other problems, it's worth having a look. The best current evidence is that carpal tunnel syndrome is structural and genetic, just like the color of your eyes or the age at which your hair turns grey. The idea that carpal tunnel syndrome was related to activities such as typing was at least overstated, and might turn out to be a myth.