Cleanse the penis with soap and water without retracting the foreskin, then insert the catheter immediately.

Use povidone-iodine to clean only the shaft of the penis without exposing the glans or meatus.

Retract the foreskin if uncircumcised, cleanse the glans penis with povidone-iodine using a sterile swab, then release the foreskin after catheter insertion.

Apply bacitracin ointment to the meatus before catheter insertion to prevent infection.