I never thought about it, but I do think 2 years ago when I had a c-section....it created a flare-up!
Yes.. surgery can definitely cause a fibro flare ! I recently sent this link to another member who was getting elective surgery. It is guidance for fibro patients who are having surgery, so that they can help reduce a fibro flare. There are some measures you can take to reduce the fibro-flare you will probably get after surgery.
http://www.immunesupport.com/library/showarticle.cfm?id=7330&T=CFIDS_FM&B1=EM071107F