Topic Explanation:
The discussion revolves around the possibility of using muscle control to manage stoma output. The original poster suggests that clenching muscles around the stoma might help control the flow of output, particularly when changing the ostomy bag after a shower.

Advice and Insights:

1. Timing Bag Changes:
- Many participants suggest timing bag changes away from meal times to minimize output during the change. Common times include first thing in the morning before breakfast or late in the afternoon before dinner.

2. Muscle Control:
- Some users have found that pulling in stomach muscles can encourage output, while relaxing them might slow it down. However, this is not always predictable.
- Others have noted that pushing the gut out can cause output to come out, while pulling it in might slow it down.

3. Use of Marshmallows:
- Marshmallows are mentioned as a method to control output during bag changes, although not everyone finds them palatable or effective.

4. Abdominal Contractions:
- Some users have developed habits of using abdominal contractions to manage output, but caution is advised as frequent contractions might contribute to breaking the barrier seal.

5. Managing High Output:
- For those with high output, reducing food and liquid intake, and using Imodium can help manage the situation, though it may lead to gas pressure.

6. Exercise and Muscle Strength:
- Maintaining strong stomach muscles is seen as beneficial for managing output, and isometric exercises are encouraged.

7. Risks of Muscle Manipulation:
- There is a risk of breaking the seal if muscle manipulation is too forceful, so gentle pressure is recommended.

8. Personal Experiences:
- Some users have shared personal experiences of using muscle control to manage output, noting that it can be unpredictable and varies from person to person.