Abstract
A difficult urethral catheterization (DUC) occurs when a urethral catheter cannot be advanced into the bladder after one or more attempts. Depending on the practice setting, using a 16–18 F Coudè catheter followed by a 12 F silicone catheter can solve most DUC cases. When catheterizing by an experienced practitioner fails, it is recommended to attempt placing a glidewire blindly. If urethral dilation is needed, using small (<14Fr) ureteral access sheaths is usually all is needed. Cystoscopy will be necessary for a small percentage of cases.