A system and method are provided for the determination of urethral blockage. The system comprises a transducer arrangement for locating in the vicinity of the patients urine flow, and a control unit in communication with the transducer arrangement. The transducer arrangement has at least one acoustic transducer capable of at least receiving acoustic waves, generated by the patients urine flow, and producing an output signal indicative thereof. The control unit receives and processes the output signal and determines a change in the output signal indicative of the urethral blockage.