This topic is about finding ways to prevent stool leakage beneath barrier rings for someone with a colostomy and an obese abdomen. The person is experiencing issues with their current setup, where the abdominal fat folds over the stoma, causing the wafer and ring to move and allowing stool to leak. They are looking for solutions to manage this problem effectively.

Here are some helpful suggestions and insights:

1. Consider using the Coloplast SenSura Mio Convex Flip Ostomy Barrier with the SenSura Mio Click Ostomy Pouch. This combination is designed for people with "keg-shaped" abdomens and may provide a better seal. Pair it with Coloplast’s wide, non-rolling support belt, which is available in sizes up to 4XL, to help keep the barrier in place.

2. If the standard SenSura Mio Flip does not work well with very deep creases, reach out to Nu-Hope Laboratories for their large foam-rubber barrier ring or other custom options.

3. A funnel-style protective plastic ring can help channel output away from the stoma base, reducing leakage.

4. Irrigation might be a good option to regulate colostomy output. Many people who irrigate only need to wear a security pouch between sessions.

5. An ostomy belt can provide additional support for any two-piece system, helping to keep everything secure.

6. Consult with an experienced ostomy nurse, preferably one associated with a manufacturer or specialized clinic, to observe your application technique. Their expertise can be invaluable.

7. Look into flexible-faceplate systems. Convatec is testing one through telehealth consultations with ET nurses, and users have reported excellent adhesion. You might need adhesive-remover wipes or alcohol for easy removal.

8. Review clinical guidance on managing ostomy challenges related to obesity. Two useful resources are:
- "Challenges of ostomy care and obesity" (NIH PubMed ID 15361632)
- "Ostomy management in the obese client" (NIH PubMed ID 18773864)

9. Large specialty centers like the Cleveland Clinic and Mayo Clinic, as well as the United Ostomy Associations of America (UOAA), can offer further product suggestions and expert referrals.

10. Consider general measures such as weight reduction if possible, as reducing abdominal girth can improve wafer stability.