What distance is recommended for adequate surface area around the stoma?

• A. 2-3 inches
• B. 1-2 inches
• C. 4-6 inches
• D. 0.5 inch

Answer: (A)

Having adequate surface area around the stoma means ensuring enough peristomal skin is covered by the adhesive barrier to form a secure seal and accommodate changes in the abdomen and stoma size. A margin of about 2–3 inches provides a broad enough area for reliable adhesion, helps the barrier conform to contour and movement, and reduces the risk of edge lifting and leakage.

If the margin is too small, such as half an inch or an inch or two, there isn’t enough skin for a durable seal, increasing leakage risk and skin irritation. A margin that's much larger, like 4–6 inches, is not necessary and can make the appliance bulky, harder to fit under clothing, and may trap moisture against the skin.