We have been there/done that...my oldest was a few weeks old when she had her first UTI and a high fever. I think that makes the difference.. the fever i mean. They did the VCUG and all that but I was not happy about it, unfortunately she DID have a defect in her ureters and had to have one done annually to keep an eye on her. As horrible as I felt for her having to get it done, the damage the UTI's can do on their kidneys for life is irreversable so it is a necessary evil. Luckily my daughter outgrew her condition and is no longer having to be followed anymore, just every few years she goes for an ultrasound to make sure the kidneys are growing properly however due to the "reflux" in the beginning, she was on medication to prevent kidney infections (that is where the fever comes from). This is worse in girls because of baths, the bubbles and bath water irritates and goes up and can cause infection. I do not allow my girls to take baths but one in a blue moon. After this came to light we were discussing it with family and found out a cousin of mine actually had to have surgery for the same thing, we opted out of surgery and waited it out. Good luck, my tip would be not to stay in the room when they do the VCUG, I couldn't take it..However when they are putting the catheder in if you feel the first person is not doing it right or something ask for someone more experienced, I did:-) ***if you do happen to need a urologist, Dr. Kirk Pinto in Ft Worth is WONDERFUL, we went to others before him and he is worth the wait*** Mine had a level IV on one side and Level V on the other and she still outgrew it. There is hope but the tests are worth it. When they are little, and you have to collect urine, ask for the little bag, it sticks to their skin and you collect the urine that way so they do not have to use a cath every time. My doc just game me bags and cups so i could use when i needed. And now that she is older, i use a home UTI test prior to going to the doc... They sell them at most stores and have usually been right.