Once may be enough.
Williams
R D
RD
D001437:Bacteriuria / Q000517:prevention & control*; D006801:Humans; D008297:Male; D011300:Preoperative Care / Q000379:methods*; D011468:Prostatectomy; D013530:Surgical Wound Infection / Q000517:prevention & control*; D007507:Therapeutic Irrigation; D013997:Time Factors; D001743:Urinary Bladder / Q000382:microbiology; D016055:Urinary Retention / Q000150:complications