Sounds like the urinary opening is just inside the vag opening - this isn't unusual. Things tend to move a bit after childbirth. I cannot count the number of ladies I have had to cath who had theirs that way. Just to be sure, I would let your HCP check it out next time you are in, or sooner if there are any symptoms of infection such as cloudy or odorous urine, drainage, pain or fever. To be honest, I don't know what they do for fistulas these days - probably depends upon the severity and location as well as wether or not any problems are being caused I would imagine. When I worked in the hospital they surgically repaired them , but those were generally pretty severe ones.