Can nuvaring be the cause of symptoms of kidney infection? I had a cystoscopy because my urologist thought I had a kidney stone, but it came back that everything was normal. Also, when trying to remove the nuvaring this morning, I noticed that it was difficult to remove because it seemed stuck behind a bulge in my vagina. Should I discontinue use. I'm due for a follow-up with my urologist and I have a gynecology appointment later this month.