Are there a lot of things that can go wrong with the wrist, other than breaking it or something like that?

There are many disorders that can affect the wrist, from common diseases like arthritis to less common ones, such as Kienbock's disease. The wrist is made of very small bones and a small canal through which nerves go through to access the hand. If anything happens to any of the structures, the bone, ligaments, muscles, nerves, and soft tissues, you can end up with a good bit of pain and restricted movement and function of the hand.

Reference: 

Pedro K. Beredjiklian, MD. Kienbock's Disease. In Journal of Hand Surgery. January 2009. Vol. 34A. Pp. 167 to 175.

Disclaimer

The information on this website is not intended to replace the advice or care from a healthcare provider. The information on this website is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments, or treatments. The information should NOT be used in place of visiting with your healthcare provider, nor should you disregard the advice of your healthcare provider because of any information you obtain on this website. Discuss any activities presented in this website with your healthcare provider before engaging in the activity.