Does ileostomy output have an odor?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: July 11, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

Odor in Ileostomy Output

Yes, ileostomy output typically has a malodorous quality, particularly in patients with a jejunum-colon anastomosis where the output is described as both malodorous and bulky due to steatorrhoea (fat in the stool). 1

Understanding Ileostomy Output and Odor

Types of Ileostomies and Their Output Characteristics

  • Jejunostomy/High Ileostomy:

    • Less malodorous than lower ileostomies
    • Higher volume, more liquid output
    • Contains digestive enzymes and bile salts
    • Typically lacks significant bacterial fermentation 1
  • Standard Ileostomy:

    • More malodorous than jejunostomy
    • More formed output
    • Contains partially digested food and bile
    • Some bacterial fermentation occurs
  • Jejunum-Colon Anastomosis:

    • Specifically noted to have malodorous and bulky output
    • Steatorrhoea (fat malabsorption) contributes significantly to odor 1

Factors Contributing to Ileostomy Odor

Diet-Related Factors

Several dietary components can influence the odor of ileostomy output:

  • High-odor foods:

    • Eggs
    • Fish
    • Onions
    • Garlic
    • Some spices
    • Certain vegetables (especially cruciferous)
  • Fat content:

    • Higher fat intake can lead to steatorrhoea, increasing odor 1
    • Reducing dietary fat may help decrease malodor

Bacterial Activity

  • In standard ileostomies, some bacterial fermentation occurs
  • Less bacterial activity in jejunostomies 1
  • More bacterial activity in jejunum-colon configurations, contributing to odor 1

Management Strategies for Ileostomy Odor

Dietary Modifications

  • Consider limiting:

    • Foods known to increase odor
    • High-fat foods that may contribute to steatorrhoea 1
    • Alcohol (which can increase output and odor) 2
  • Fiber considerations:

    • A high fiber intake can increase loose stools and flatulence 1
    • However, complete fiber restriction is not necessary

Pouch Management

  • Use pouches with odor-proof barriers
  • Empty pouch regularly before it becomes too full
  • Ensure proper seal to prevent leakage and associated odor
  • Consider pouch deodorants or in-pouch drops to neutralize odors

Medication Options

  • Antimotility agents can help reduce output volume and frequency:

    • Loperamide (2-8 mg before meals) 1
    • Codeine phosphate (if loperamide insufficient) 1
  • For high-output ileostomies:

    • Proton pump inhibitors or H2 antagonists can reduce gastric acid secretion and output 1
    • Somatostatin analogues (octreotide) for severe cases 1

Special Considerations

Fluid and Electrolyte Balance

  • Maintain adequate hydration (2-2.5 liters daily) 1
  • Be cautious with hypotonic and hypertonic drinks 1
  • Consider oral rehydration solutions for high output 1

Nutritional Monitoring

  • Regular assessment of nutritional status 1
  • Monitor for vitamin B12 deficiency 1
  • Watch for signs of dehydration and electrolyte imbalances

Common Pitfalls to Avoid

  1. Excessive fluid restriction: While limiting hypotonic fluids is important for high-output stomas, adequate hydration remains essential

  2. Overly restrictive diets: Many patients unnecessarily restrict foods based on fears rather than actual problems, potentially leading to nutritional deficiencies 2

  3. Ignoring odor concerns: Odor can significantly impact quality of life and should be addressed proactively

  4. Failing to distinguish between different types of stomas: Management strategies differ between jejunostomies, ileostomies, and colostomies 1

  5. Not recognizing when output changes require medical attention: Changes in odor, consistency, or volume may indicate complications requiring medical evaluation

In summary, ileostomy output does have an odor, which can be particularly pronounced in certain configurations such as jejunum-colon anastomoses. Management should focus on dietary modifications, proper pouch care, and medications when appropriate to minimize the impact on quality of life.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Professional Medical Disclaimer

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.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.