A method for automatically removing by suction urine voided by a female by use of a system that includes an external catheter, a suction canister and a suction regulator. The external catheter is applied at the urethra opening to receive urine voided by the female. The suction canister collects the urine and is coupled to a source of suction providing suction having a first value. The suction regulator is interposed between the external catheter and the canister to regulate the amount of suction to a regulated value which is applied the external catheter, whereupon urine from the external catheter is carried through the suction regulator and into the canister.
