The present invention relates to systems and methods for controlling flow through the urinary bladder and, more specifically, systems and methods for controlling continuous bladder irrigation after surgical treatment of lower urinary tract disorders. The control system for continuous bladder irrigation includes a catheter having a first port though which a first fluid enters a bladder and a second port through a second fluid exits the bladder; a first flow speed sensor for measuring a first speed of the first fluid; a second flow speed sensor for measuring a second speed of the second fluid; a control unit for sending, based on the first and second speeds, a warning signal of an abnormality in infusing the first fluid into the bladder and in draining the second fluid from the bladder.