Sudden onset retention urine in a 15 yr old girl .First treated by quacks for 6 days, presented with 1300 ml urine in urinary bladder. RFT normal USG normal Cystoscopy normal except mild cystitis, Urethra normal Foly Catheterization done empirical Rx given. CATH removed 10th day.
Retention recurred. How to proceed now?