This document summarizes the catheterization procedure. It describes the different types of catheters used including Foley's catheters. The procedure involves inserting a sterile catheter into the bladder via the urethra to drain urine. It outlines the necessary equipment, positioning of the patient, cleaning of the area, lubricating the catheter, inserting it into the bladder for males and females, inflating the balloon, and measuring output. Aftercare involves documentation and making the patient comfortable.