<s>[INST] hi sir my child is just 3 month old and he is suffering for moderate hydronephrosis with PUJO. What option you suggest surgry or wait & watch.after test of ultrasound ans DTPO function is normal. what is your suggestion?sir mail id is  YYYY@YYYY [/INST] HelloModerate hydronephrosis due to PUJ obstruction and with normal DTPA in this age should be followed up with serial ultrasound examination. In ultrasound if there is further progression of disease repeat DTPA may be needed. If repeat DTPA shows decreasing renal function(Other than this if there is repeated symptomatic urinary tract infection,this is also an indication for surgery.RegardsYou can ask me directly </s>