Patients undergoing surgical repair of colovesical fistula will have have "early" (post-operative day 3) cystogram and removal of bladder catheter. Outcomes from the "early" group will be compared to historical "late" group data to determine if early bladder catheter removal is safe.

There is defined time for foley/bladder catheter removal after colovesical fistula repair in the current surgical literature. This study will be a prospective cohort study evaluating outcomes after early foley catheter removal (on post-operative day 3), specifically bladder leak, 30-day readmissions and adverse events. This cohort will be compared to a retrospective "late" group, who had foley catheter removal later in their hospital course.

Inclusion Criteria:

• Adults aged 18 and over
• Undergoing surgical repair of diverticular colovesical fistula

Exclusion Criteria:

• Patients with active and untreated genitourinary cancers
• Subjects with known or suspected Inflammatory Bowel Disease as the cause of colovesical fistula.
• Individuals who are not expected to regain normal bladder function after surgery as defined by either pre-existing bladder dysfunction with chronic indwelling urinary catheter, supra-pubic catheter, or surgical urinary diversion
• Individuals who require re-operation prior to Foley removal
• Adults unable to consent
• Pregnant women
• Prisoners
• Individuals who are not yet adults (infants, children, teenagers less than 18 years old)