30+ years of experience
500+ CRS+HIPEC procedures
International multidisciplinary committee
Reviewed by Dr Juan José Torrent · Updated: 4 September 2026

Surgery

Stoma

Ostomy, colostomy, ileostomy

Opening of the bowel onto the abdominal wall to divert transit into a bag. It may be temporary, to protect an anastomosis while it heals, or permanent.

An anastomosis needs a good blood supply, absence of tension and the capacity to heal. When any of these factors fails, a protective stoma is created to divert transit while the join heals.

An ileostomy brings out the small bowel and is usually temporary; a colostomy brings out the colon and may be temporary or permanent. A stoma is permanent when there is no functioning sphincter left or when restoring transit would not be safe.

Closure of a temporary stoma is considered once healing of the anastomosis has been confirmed, usually between two and six months later.

This explanation is intended as general information and does not replace a specialist assessment of an individual case.

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