What is a trail without catheter?
A trial without catheter [TWOC] is when your urinary catheter (a tube that passes through your urethra and drains urine from your bladder) is removed. It is important that you are able to pass a sufficient amount of urine to have a successful trial without catheter at home.
This leaflet describes the TWOC process to follow at home after having recently undergone urological surgery. It is a simple procedure which allows you to remove the catheter in your own environment and prevents you having to come back to hospital.