I am sorry to hear that you are having to have treatment.
As I am not involved in your care and do not know what type of treatment and for what cancer it is probably best to ask the nurses and doctors looking after you. It is possible to have radiotherapy whilst having a catheter but your team will be in a better situation to answer your questions.
You are of course welcome to ring and chat this through with the nurses on the helpline. The Freephone number is 0800 800 4040 and the lines are open Monday to Friday 9 am to 5 pm.
