I'm far from an expert on this but based on my recent experience with surgery and using topical t, I would recommend staying on your cycle and letting the surgeons know. I stopped per Dr request, wish I was on T cyp at the time so that wasn't an option. I am not a Dr, but advise keeping your body as close to the state it has been operating on as possible for the surgery and recovery period (So what I mean to say is ask your doctor about this concern). Shutting down your system completely with no T available is an extra variable that your system isn't used to at a stressful time. It nearly killed me.