Staff Answer
Jun 05, 2026 - 09:00 AM
A flat ostomy wafer has a flat medical skin barrier surface, while a convex ostomy wafer has a curved or outward-shaped barrier design around the stoma opening. Both wafer styles are used as part of an ostomy pouching system to help attach the pouch to the skin around the stoma and collect output.
Flat and convex wafers may vary by barrier material, adhesive type, opening size, convex depth, firmness, cut-to-fit or pre-cut design, flange size, and pouch compatibility. Product details and healthcare guidance should be reviewed carefully to confirm the wafer shape, barrier style, stoma opening size, and ostomy system compatibility before ordering.
