Quote Originally Posted by MadScientist View Post
They initially present the same, but a pull will recover, whereas the sports hernia pain will return once activity is resumed. It needs surgery to fully heal. The fact that the medical staff let this linger for 2 years is what shows their incompetence, rather than the initial misdiagnosis. Here's an article on the difference.
http://www.sportshernia.com/groin-pain-sports-hernia/
I also wonder if this is part of the "everyone plays hurt" and "can't make the club in the tub" culture of the NFL. I wouldn't doubt if Bush underplayed the severity of the injury so he could stay on the active roster. It's speculation, but I'd think it happens frequently.