Hello Thanks for query .Based on whatever information(Looks incomplete) you have posted I would state that you have congenital Pelvi Ureteric Junction obstruction . The ureter a tube that caries urine from kidney to bladder consists of three portion when the baby is in mothers womb .These three parts join together to form a single tube called ureter . In one in 1 thousand cases there is anomaly in joining upper portion of the tube with middle portion causing narrowing of the ureter what is called as Pelvi Ureteric Junction obstruction .(PUJ Obstruction) This causes incomplete drainage of the urine from the kidney down into bladder and gradually kidney gets thinned out and becomes non functioning unit . Please consult qualified Urologist for clinical assessment and get following basic tests done to confirm the diagnosis. 1) Urine routine and culture. 2) Ultrasound scanning of abdomen and pelvis 3) Intravenous Pyelography 4) DTPA scan 5) Renal Function tests. Further treatment will depend upon result of these tests and final diagnosis. Dr.Patil.