Well i have 6( in both kidneys) and i have UTI. I went to the ER twice. they gave me antibiotics and such for my uti. i took my antibiotics both times and i still have my uti. i hate it. i really do. it's been 3 months and i still have my stones. how fast can they grow. about a month ago they did a cat scan and they said they were 4mm. it seems like i'm not able to pass them. and the ER here is rude probably because i don't have health insurance. basically all they do is give me pain meds, antibiotics and send me on my way.