My daughter age 6 was born with urinary reflux. At 2 years old I was told she outgrew it. But 3 to 4 times a year she still gets a UTI. Now protein is showing up in her urine and I am having to take a sample in once a week. She had a sonogram and it showed no kidney damage. Next week she will have a VCUG. What does this protein come from, what does it mean.