If anything causes that carpal tunnel to close in on the nerve, or for the nerve to swell within that carpal tunnel, the nerve becomes pinched or irritated. The nerve function is then reduced and the hand develops numbness, pain, weakness, and other very strange symptoms. This is carpal tunnel syndrome. A. People often ask why we see so many cumulative trauma disorders today, when we heard very little about this problem a few years ago. There are many reasons for this.
Jobs are different.
Work technique is different. People are different. Attitudes are different. The world is changing. Years ago, a typical worker carried out several tasks using many muscles in a variety of postures with heavy physical effort.