Answer: Following is the answer we received from our Ostomy specialist on board - It is best for the opening of the barrier to fit close to the stoma. The moisture from the stoma will not cause the material to break down. If it doesn't have a close fit, moisture or stool can be in contact with the skin and break it down. Keep in mind, it should not be smaller, compressing the stoma. This can cause the stoma to bleed.
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