Colovesical fistula (CVF) is an abnormal connection between the colon and the bladder ... but surgical intervention may be necessary if symptoms persist or complications arise.

Other common symptoms of diverticulitis can include: Complications from diverticulitis, such as a fistula, abscess, or bowel perforation can cause other symptoms. Less common symptoms of ...

Symptoms of anal fistulas include pain, swelling, itching, and redness around the anus. In some cases, fluids — including pus, poop, and blood — may drain from the fistula opening in your skin.