How common are anastomotic leaks?

How common are anastomotic leaks?

Anastomotic leaks are reported in about 5% of anastomosis surgeries. About 75% of anastomotic leaks are associated with colectomy, removal of some part of your colon. They’re most common when the resection is located toward the end of your large bowel (in your rectum or sigmoid colon). This part is narrower and more technically difficult to operate on, especially in men.