SI joint dysfunction is somewhat common in runners/triathletes. Labral tears are pretty common in the entire population but asymptomatic in most people (of course, if you're running a lot they're not ;-). I guess my current question is if females experience more hip injuries than males.
my data point: psoas tendonitis, 2 cortisone shots + PT, also have a small labral tear that may or may not be symptomatic (we can't decide if it's the labrum or the psoas that causes me pain). This acts up most for me when I am cycling on the trainer and if I get sloppy with run form, particularly running fast. Strengthening glutes has helped a lot.
maybe she's born with it, maybe it's chlorine
If you're injured and need some sympathy, PM me and I'm very happy to write back.
disclaimer: PhD not MD