Last fall I managed to twist my leg in a way that made it go "pop" and it became swollen. Since then I've been twice to the doc which couldn't find an issue. This week I had an appointment with a ...
DEAR MAYO CLINIC: I was playing a pickup game of football with my kids, took a tumble, and my kneecap made a popping sound. It really hurt, then seemed to get better, but something's not right. Any ...