Usg kub says subtle calyceal separation in both kidneys due to distended urinary bladder and urinary bladder shows subtle wall thickening.. other things shape, size , etc are normal... is this a serious problem... what to do? Urine routine is normal except 2-3 rbc, culture is also normal... pls suggest.. my kidneys are working properly or not? What does usg report means? What I need to do? I had to miscarriages in past , don't know the reason, is this kidney problem is one of the reason for my miscarriages?