Hi Marydean
The only thing I can think of is that they used a guide wire for you. This would be very unusual for a bladder catheter but is quite common when putting a breathing tube in. The usual catheter used is a long soft one, but there is a short one that is used as a one off, (they put it in, drain the bladder and then take it out. Only stays in for a few minutes)
If there was such a thing as a male catheter it would need to be longer than a female one.