I rode for two months with a cracked wrist when I was a kid. Was petrified of telling my trainer or my mom because I knew that they wouldn't let me near a horse. The trainer kept remarking on how I handled gates strangely and how I was suddenly very careful about dismounting. Rode for a while with a screwed up knee too later on, but I finally had to give in and let that one heal. :-p
It's amazing what we'll put up with to ride, but yet lay out from work for. ;o)