I have Pars defect in my L5 and a minor bulging disc both above and below it. Should I consider fusion surgery.

I can't tell you if you should have it done, but I did in 1996 and I have been without pain since then. No a days they have a lots on newer things they do and somewhat less invasive. I got to the point to either fix it because I can't live like this anymore. So if your not sure maybe your not ready. But I don't think you want the spine to shift and really damage your spinal cord. Im sure the damage is only going to get worse. Good Luck with your decision