You'll know when it's time. For myself it was very difficult, I contemplated it for a very long time but when I decided to go ahead, I knew that I was comfortable with it and it was time. I had exhausted all non-surgical options. Ranging from physiotherapy, accupuncture, ESI, rehab, core strethening, excercising etc. My surgery is scheduled in a months time. I'm terrified but I feel confident and I look forward to doing things that I haven't been able to do for 4 years or longer. Good luck, I wish you the best. Let us know what you decide to do and if you have any questions let me know. Kristy.