question: My son was diagnosed with mild hydronephrosis on the left kidney since he was in the utero. At 12 month check up we discovered a moderate hydronephrosis. We did mag scans and Vcug tests. No reflux. It is an upj obstruction. not sure if this would be 100precent. Since he was about 5 months he will never pee in his sleep, he will be very upset and fussy during the night and day naps willing to pee but not willing to wake up. Have you ever seen kids with this kind of situation. We have extremely difficult nights. The urologist said it is not related to the kidneys. thanks