1. Urethral catheterization has a long history dating back to ancient India but the modern catheter was designed in the 1930s by Frederick Foley. 2. Catheterization is used to drain the bladder for various indications like urinary retention but should always be done sensitively with patient consent and dignity in mind. 3. The procedure involves cleaning the urethral area, applying lidocaine gel, inserting the catheter while maintaining sterility, inflating the balloon, and attaching the drainage bag below the patient's pelvis. Complications can include infection, trauma, or blockage so careful technique and monitoring are important.