I had a cardiovascular procedure done Monday the July 8 2013 they went in my right growing to left leg. This morning July 11 2013 I had a bruise come up on my left inter thigh the size of a quarter it has grown to the size of my fist now. Should I go to er or wait and call doctor in morning.

They went in your groin?
I think it can wait until morning. But tell us how it looks now.