Discharge, irritation. A rectovaginal fistula is an abnormal connection between the rectum and the vagina. This could cause discharge of stool from the vagina, as well as irritation and pain around the area. If you have a rectovaginal fistula, you should be evaluated by a physician who can help you.
Rectovaginal fistula. This is a complex problem where you have developed an abnormal connection between the rectum (or other part of the colon) and the vagina. Depending on the cause of the fistfuls would dictate best treatment options. For Example if this was from diverticulitis, surgery would be the best option but if this was from Cohn's then medications may heal this. I suggest discussing with a surgeon.
Yes. If you have a rectovaginal fistula or have had one repaired there should be no problems with a colonoscopy. The colonoscope should pass right by the area without any problems. In rare instances, the fistula may be so large, the colonoscope can pass through this fistula. Even in this instance, a trained endoscopist should be able to manage this. A colorectal surgeon can repair this for you.
Would a rectovaginal fistula be obvious on a pelvic MRI if it wasn't something you were looking for?
No. Rectovaginal fistulas are notoriously hard to find. One would not be obvious on a Pelvic MRI--especially if you weren't looking for it. Sometimes enemas with methylene blue dye or protoscopy are needed. Best wishes!
Clinical symptoms. Imaging studies help doctors to refine their diagnosis that they suspect based on their physical exam. Sometime, there may be "incidental findings" on imaging studies unrelated to what the radiologist was asked to look for. In the absence of vaginal discharge that suggests passage of stool a rectovaginal fistula as such an incidental finding would strike me as odd.
Need surgery. The fistula will never close spontaneously and will continue to progress. You need surgery sooner than later.
Rectovaginal fistula. If you have a fistula you should worry more about that than the actual tampon. Fistulas are very worrisome and they should be treated. Good hygiene its a must when having a rectovaginal fistula in order to avoid infections.
Yes. Yes. It is safe. All best!