Four years ago I had successful urinary prolapse surgery, with mesh and a sling attached. Lately I have been having trouble urinating and the dr. said it could be that the sling is too tight. What would cause this to happen all of a sudden and what can I do to make it easier to urinate? I will hopefully be going for urodynamics testing soon but unfortunately not for a couple of weeks. Dr. said he might have to snip the sling to loosen it up. Will this help? Thanks!