Thought I would jump in on this one. Kerryn, be careful! Wrist pain in the area you are talking about is not so good. There is a small piece of cartilage in there called the triangular fibrocartilaginous complex (TFCC). The position you are putting your wrist in (i.e. when you deviate it toward your little finger) puts pressure on this cartilage. It is held there as if it is in a web of ligaments, and is, in part, there to prevent some of your carpal (wrist) bones from impacting against the end of your ulna. The disc can be torn or the ligaments can be torn or strained. I have an article coming up in rock on this injury, though not for a few months I think. It can happen for a number of reasons; you could just be unlucky, but the most common reason is that some of the carpal bones that the suspensory ligaments attach to are not moving as freely as they should. This places abnormal stresses through the whole apparatus, and either results in a ligament tear, or a traction tear of the cartilage disc. I have only seen traction tears in climbers. Typically it is injured by landing on your wrist and compressing it.
Don’t wait for it to heal, get someone to look at it. If you do have an underlying problem that caused it in the first place, it may prevent it from healing, or it may cause it to re-injure quite quickly. Let me know how you get on.
Julian
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