The patient was a 69 year-old man suffering from benign prostatic hypertrophy (BPH), who was candidate for transurethral resection of prostate (TURP) surgery with 980nm diode laser. At the end of the operation, the surgical team noticed abdominal distention. So with suspicion to an acute abdominal problem he underwent an exploratory laparotomy. During the surgery it was found that patient had extra -peritoneal bladder perforation, and after repairing the bladder perforation our patient was transferred to the intensive care unit (ICU) .In the meanwhile and after 48 hours, he was at last successfully discharged from ICU.