Colostomy: Indications, Procedure, and Stoma Care Essentials

A colostomy surgically diverts the colon through the abdominal wall, creating a stoma for fecal diversion when the distal bowel is compromised.

Surgical Procedure

A viable colon segment (usually sigmoid or transverse) is mobilized, brought through a rectus muscle-split incision, everted (brooked), matured to the skin, and connected to an ostomy appliance.

Common Indications

• Rectal/anal cancer (low anterior resection with protective stoma, or abdominoperineal resection)
• Complicated diverticulitis (perforation, abscess)
• Inflammatory bowel disease (Crohn's, ulcerative colitis) refractory or perforating
• Trauma, obstruction, ischemic colitis
• Congenital anorectal malformations
• Severe fecal incontinence or prolapse

Temporary vs. Permanent

• Temporary (loop or end): Protects distal anastomosis; reversed in 3–12 months after healing confirmed.
• Permanent (end): Rectum/anus removed or nonfunctional; no reversal planned.

Stoma Care Fundamentals

• Empty pouch at ⅓–½ full to prevent leakage.
• Change appliance every 3–5 days (or per manufacturer).
• Clean peristomal skin with water only—avoid alcohol, oils, harsh soaps.
• Measure stoma weekly (size changes post-op); cut flange 1–2 mm larger.
• Monitor for: retraction, prolapse, parastomal hernia, mucocutaneous separation, dermatitis.
• Diet: chew well, hydrate; adjust fiber for desired consistency.

Support System

Certified ostomy nurses (WOCN) provide preoperative siting, postoperative training, and lifelong troubleshooting. Patient support groups (UOAA) are invaluable.