What details should be documented for a colostomy site assessment?

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Last updated: October 9, 2026 • View editorial policy

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Colostomy Site Documentation

When documenting a colostomy site assessment, you must systematically evaluate and record the stoma appearance, peristomal skin condition, presence of complications, and appliance function to identify life-threatening issues like ischemia or incarceration and prevent morbidity from skin breakdown or infection.

Critical Stoma Assessment Components

Stoma Viability and Color

  • Document the stoma color precisely: A healthy stoma should be pink to red (indicating adequate perfusion)
  • Purple or black discoloration indicates ischemia and requires emergency surgical evaluation 1
  • Note any edema or changes in stoma size

Stoma Configuration and Complications

  • Assess for prolapse: Document if there is elongation of the intestinal portion beyond normal projection (occurs in 5-10% of cases) 1
  • Distinguish from parastomal hernia: A hernia presents as a bulge in the skin and soft tissue surrounding the ostomy, whereas prolapse is elongation of the intestinal stoma itself 1
  • Note the presence of pain or obstipation, which combined with discoloration suggests incarceration requiring emergency surgery 1

Peristomal Skin Assessment

Skin Integrity and Lesions

Document the following dermatological findings systematically:

  • Excoriation or breakdown: Most commonly from leaking appliances 1
  • Allergic contact dermatitis: Presents as itching and redness in the shape of the offending product (appliance components) 1
  • Fungal infection: Itchy maculopapular rash with satellite borders from prolonged moisture and heat 1
  • Folliculitis: Inflammation of hair follicles 1
  • Pyoderma gangrenosum: Painful ulcers with a purple halo, particularly in IBD patients—this requires specific documentation and specialist evaluation 1

Appliance Seal and Leakage

  • Document whether the pouching system is intact or if there is evidence of leakage
  • Note the frequency of appliance changes (normal: colostomy every 6-7 days) 1

Output Characteristics

  • Volume and consistency: Colostomy output should typically be formed with bowel movements once daily 1
  • Document any deviation from expected output patterns

Location and Positioning

While primarily a preoperative concern, document if the stoma is:

  • Within the rectus muscle
  • Away from scars, skin folds, bony prominences, and umbilicus 1

Common Pitfalls to Avoid

Do not dismiss purple discoloration as benign—this represents ischemia and demands immediate surgical consultation 1. The difference between a reducible prolapse and an incarcerated one can be life-threatening.

Do not attribute all peristomal skin issues to simple irritation—systematically rule out fungal infection, allergic dermatitis, and pyoderma gangrenosum, as each requires different management 1. If antifungal treatment shows no improvement after 2 weeks, escalate to surgical or enterostomal therapy evaluation 1.

Document pain explicitly—pain with prolapse or discoloration indicates potential incarceration, changing management from conservative to emergent surgical 1.

References

1
Guideline

aga clinical practice update on management of ostomies: commentary.

Clinical Gastroenterology and Hepatology, 2023

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.