The present study was conducted on a total number of (66) cattle calves, 4-24 months old, suffered from obstructive urethrolithiasis and ruptured urinary bladder. 63 cases were operated in veterinary practices in Elminya and Beni-suef Governorates during the period from December 2004 to May 2005. Two techniques of urethrotomy had been evaluated in this study including conventional urethrotomy (ventral urethral approach) in 30 cases and a new technique of urethrotomy (dorsal urethral approach) in 33 cases. Histopathologic investigation was performed on three formalized samples collected from abattoirs for examination of the seat of urethral obstruction. It was concluded that the ventral urethrotomy technique associated with high probability of urethral rupture or leakage of urine after removal of the Rayl's tube while the dorsal urethrotomy technique proved its effectiveness for long-term success urethrotomy with no complications. To our knowledge, the dorsal urethrotomy technique hasn't been reported before.