A potential risk of tubal ligation
is an incisional hernia. When the trocar -- the device used to penetrate the surgical site -- is removed at the end of the surgery, the opening usually closes naturally. Hernias arise when the abdominal wall fails to close after the trocar is removed. What can potentially occur is that a small section of bowel can become trapped in the defect, which can lead to obstruction. This is rare and usually occurs only in a large-diameter trocar site.
If an abdominal wall defect is detected, it may have to be closed either during tubal ligation surgery or by an open surgery. If small bowel obstruction has occurred, surgery may be necessary to repair or even remove the damaged part of bowel.