My 5 year boy sonography report showing Mild dilatation pf p.c. system is seen both the kidney. Urinery bladder is seen in over distension. Is there any worry or just need medition. I went for cough problem 1 week ago but yesterday night his stomach having pain then doctor ask for sonography and urine report. Urine report id normal pale clear reaction 6,spec.gravity 1.020 Albumin trace, sugar nil Pus cell 2-3 hpf Rbc nil Epit cell 2-3 hpf Casts nil Crystals calcium oxalate Bacteria occasional