Birth defects of the renal tract are the most common abnormalitiesdetected. Ultrasound is an accurate imaging method in the evaluation of theurinary tract during early life. This study was performed on 200 potentially normalnewborns. Twelve cases were detected by U/S including 2 cases with pelvickidney, 2 cases with renal duplex, 1 case with PCK disease,1 case with PUV and6 cases with persistent renal pelvic diameter dilatation ≥1 cm. Ultrasonography iseffective for early detection of silent renal anomalies thus allowing for earlytreatment.