There are risks associated with any surgical procedure. These may include the following:

• Excessive bleeding
• Adverse reactions to anesthesia or medications
• Post-surgical infection
• Breathing problems
• Incisional hernia
• Damage to adjacent organs
• Deep vein thrombosis or blood clots

A colon resection is a surgical procedure to remove either part of or all of colon, or large intestine. When the whole colon is removed, the operation is also known as a colectomy. A colon resection is performed to treat or prevent the spread of certain diseases of the colon.

Colon resection surgery may become necessary when the colon is so damaged that part or all of it has to be removed.

• Uncontrolled bleeding
• Bowel obstruction
• Crohn's disease
• Diverticulitis
• Injury to the colon or rectum
• Fistula, an abnormal connection between organs
• Colorectal cancer
• Ulcerative colitis
• Abscess