How do you get a groin strain?

Now That's a Stretch: You get a groin strain by straining your groin.Oh,you mean HOW do you get it.First let's assume by groin you mean the muscles that attach to the insides of the highest point of your thighs.Muscles get strained by stretching too far or contracting too hard or repetitively for too long.Think of a dancer doing the splits or a guy running the hurdles or a weight trainer working the adductors too hard.