03.10.2016. Hello. I am suffering from repetitive urine retention and have been told by my Specialist that my Catheter will need to remain in place until early January 2017. I have already had a catheter in place for the last month and I was wondering how much discomfort will be caused by masterbating. My partner and I are keen to know as we would like to get back to our "regular" mutual times of enjoyment but we don't want to cause extra damage or injury. I am almost 58 and my partner almost 40. Many thanks a very frustrated middle aged man.