Which statement best describes how convexity depth should be chosen for stoma retraction management?

• A. It should be fixed regardless of retraction depth
• B. It should be adjusted based on stoma color
• C. It should be determined by patient preference
• D. It should be based on the depth of retraction

Answer: (D)

Convexity depth should be matched to how far the stoma retracts. The goal is to push the stoma outward enough to create a secure seal against the peristomal skin without causing tissue injury. If retraction is mild, a shallower convexity or even a flat barrier may be sufficient. With deeper retraction, a deeper convexity is needed to lift and protrude the stoma so the appliance can seal properly. This approach helps prevent leakage and protects the skin, and it should be adjusted gradually while monitoring stoma protrusion and skin condition. Factors like stoma color do not determine convexity depth, and patient preference alone does not establish the mechanical needs for a good seal.