A convex ostomy wafer is designed to curve inward toward the stoma, gently pushing down on the surrounding skin and allowing the stoma to stick out more. This creates a more secure fit and helps direct urine or stool into the pouch and not under the wafer or skin barrier. If your stoma sits at skin level it is flush. If your stoma sits below skin level it is recessed or retracted. This can cause the surrounding skin to be sunken or uneven. A convex pouching system can help fix the problem. A convex wafer can be a part of a two piece system or a one piece system. It is available in closed or drainable. Coloplast offers the Light Convex and Deep Convex as part of their two piece systems. If you have general questions about how your ostomy supplies work, contact your online medical supply company and they would be happy to help you understand the difference between ostomy pouch systems. Your ostomy care medical team can help you decide if a convex wafer is for you. Your personal nurse or medical care provider is your best resource since they know your personal medical needs. Coloplast Sensura Mio is a great place to start looking for which convex ostomy wafer or convex barrier works for your stoma.