
Choosing the right type of ostomy wafer can make a big difference in how well your pouching system fits, feels, and protects your skin.
Because every stoma and body is different, there’s no single ostomy wafer that works best for everyone. Some people may need a flat wafer, while others might be better suited to a convex skin barrier. Plus, there are cut-to-fit, pre-cut, and moldable options. So what type of ostomy wafer is right for your individual needs?
180 Medical and our team of Ostomy Specialists can help you understand your ostomy wafer and pouch options and get the supplies your healthcare provider recommends.
What is an Ostomy Wafer?
An ostomy wafer, also called an ostomy skin barrier, is the part of your ostomy pouching system that attaches to the skin around your stoma (peristomal skin).
It’s what helps hold your pouch securely in place. It typically features a skin-safe adhesive on one side, while the other side is attached to the ostomy pouch. This allows output from the stoma to collect in the pouch without touching and irritating the skin.
It’s important to get the right fit and type of ostomy skin barrier to reduce the risk of ostomy leakage or peristomal skin irritation. It’s one of the keys to feeling confident with your pouching system, day or night.
Should I Use One-Piece or Two-Piece Ostomy Pouching System?
Ostomy pouching systems are available in two main options: one-piece or two-piece. In a one-piece system, the wafer and ostomy pouch are combined into a single unit. These are great for people who don’t have to change their pouches as often. For instance, someone with a urostomy may find they don’t have to change their pouch as often because they can simply drain it throughout the day.
In a two-piece ostomy pouching system, the wafer and pouch are separate, allowing for quicker pouch changes. It’s often the preferred system for those with a colostomy or ileostomy, particularly for those who wear closed pouches rather than drainable pouches.
Also, many people who change their ostomy pouches more frequently may prefer a two-piece ostomy system because it can help reduce the wear and tear on the skin.
What Types of Ostomy Wafers Are Available?
There are a variety of sizes and types of ostomy skin barriers to suit diverse bodies and needs.
Below are the three main types of ostomy wafers available.
Cut-to-Fit or Trim-to-Fit Ostomy Skin Barriers
Cut-to-fit wafers come in varying sizes and shapes, each with a printed design of trimmable rings. These rings serve as guides, which help you cut your own opening to fit your individual stoma. This is especially great for ostomates who may be between common sizes or have an irregular stoma shape.

Pre-Cut Ostomy Wafers
Pre-cut skin barriers are ideal for ostomates with uniform, circular stomas. If you can use a pre-cut skin barrier without cutting or alterations, pre-cut wafers could be a great solution for your needs. However, not everyone’s stoma is a common size or shape.
Moldable Skin Barriers
Skin barriers or ostomy wafers with Moldable Technology™ are designed to make them easier to use and to help you achieve a personalized fit that’s just right for you. You can mold the shape to create a fully personalized fit around your stoma without using ostomy scissors.
Skin wafers featuring Moldable Technology™ are made out of a flexible, skin-friendly material. All you have to do to get a custom fit is roll the material back with your thumbs or fingers.
After the moldable ostomy wafer is shaped to your secure fit, the material turtlenecks around the stoma to provide more comfort and help prevent ostomy leakage.
If you’re interested in trying Moldable Technology™ ostomy supplies, contact 180 Medical. We’re ready to help you!

What’s the Difference Between Flat and Convex Ostomy Wafers?
Every individual with an ostomy has their own unique stoma. This means the size, shape, and even the protrusion of their stoma can be different.
While some people may have a significant protrusion from the skin, others might have a stoma that lies flat against the skin or even retreats slightly into the body.
Keep in mind that your prescribing healthcare provider or a qualified ostomy nurse will be your best resource for guidance on what works best for your unique needs.
Flat Skin Barriers
If your stoma protrudes at least a quarter-inch, a flat ostomy skin barrier may be right for you.
Typically, flat wafers remain very flexible, allowing them to fit the contours of your body.
Convex Skin Barriers
If your stoma protrudes less than a quarter-inch from your skin, or if it lies flat or retracts, you may find better performance with a convex wafer.
A convex wafer, while not as flexible as flat wafers, positions the stoma in its bowl-shaped center. This creates a protrusion around the stoma, helping it drain cleanly and efficiently into your ostomy pouch.
Where to Buy Ostomy Skin Barriers Online
180 Medical is your go-to for high-quality home-delivered ostomy supplies, including ostomy wafers and ostomy accessories.
Contact us today to try some free samples or talk to one of our highly trained Ostomy Specialists. We’ll be happy to help you customize your order to what works best for you, based on your insurance and prescription.
Disclaimer: This article is for informational purposes only and is not intended as medical advice. Information provided on 180medical.com should not be used as a substitute for medical advice, diagnosis, or treatment from a qualified healthcare professional. Please consult your healthcare provider with any questions about your condition, treatment, or medical supply needs.