If stoma has most troublesome convexity immediately around base, what type of face plate would be best?

• A. A standard non-convex barrier
• B. A cut-to-fit barrier
• C. A pre-cut barrier if possible
• D. A multi-piece barrier

Answer: (C)

When there is pronounced convexity right around the base of the stoma, the main goal is to create a seal that sits smoothly against that contour without creating pressure points or gaps. A barrier with a pre-cut opening, if the opening size matches the stoma, provides a precise fit that aligns with the stoma’s base and convexity. This minimizes the need for manual trimming near the base, reducing the chances of creating folds or gaps where leakage or skin irritation could occur. In contrast, a barrier that must be cut to fit can introduce variability—cutting around the base convexity risks over- or under-cutting and can generate edges that don’t seal well. Therefore, using a pre-cut barrier when possible offers the most reliable seal around a base with troublesome convexity.