There are two primary surgical methods employed in the treatment of diverticulitis:

1. Primary Bowel Resection: In this surgical procedure, the segment of the bowel affected by diverticulitis is removed, and the healthy ends of the bowel are reconnected to restore bowel continuity. This procedure aims to maintain normal bowel functions. The surgery may be performed using either an open or a laparoscopic (minimally invasive) approach, depending on the extent of inflammation and the patient's clinical condition.

2. Bowel Resection with Colostomy Creation (with Temporary Colostomy): In cases of severe inflammation, infection, or perforation in the bowel, it may not be safe to immediately reconnect the bowel ends. In such situations, after removing the diseased section, the surgeon brings a healthy end of the large intestine through an opening (stoma) created in the abdominal wall. A bag is attached to this opening, and stool collects in it. This procedure is called a colostomy. Once the inflammation in the bowel and the patient's general condition improve, usually after a few months, the colostomy is closed in a second surgical procedure, and bowel continuity is restored.