Guide to stoma products
According to the NHS Constitution, you have the right to be involved in decisions about your care including the stoma products you use.¹
For some people, finding the right product is quick. For others, it’s a process of trying, learning and adjusting - with the freedom to explore and support along the way.
Understanding stoma products
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What is a pouch and baseplate?
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One-piece vs. two-piece stoma system
Types of stoma products
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One-piece stoma bags
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Two-piece stoma bags
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Convex stoma bags
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Essential stoma accessories
One-piece and two-piece stoma bags: understanding the difference
One-piece systems
- The pouch and baseplate are combined into a single unit
- The full system is changed when the pouch is replaced
- Some people prefer the simplicity of applying and removing everything in one step
Two-piece systems
- The pouch and baseplate are separate
- The pouch can be changed without removing the baseplate
- Some people prefer the flexibility this can offer in managing their routine
Your stoma products, your choice
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Common questions and everyday challenges
There are many reasons why your pouch could be leaking.
If your pouch is leaking, you should first consult your specialist stoma nurse who will be able to provide specialist advice. You can also speak to one of our product specialists for guidance on exploring different options - you can reach them on 0800 282 254 or email onlinesample.requests@convatec.com
Here are some other tips you might also like to try:
- Use a fitting template to measure your stoma and cut around the shape of your adhesive baseplate.
- Empty your pouch regularly, ideally when it’s between a third and half full.
- Check that your adhesive barrier is sticking firmly to your skin.
- Make sure there are no creases or folds in your pouch.
The biggest cause of sore skin is leakage which can lead to pouch failure. Also trauma from removing the pouch too quickly can damage the skin.
The skin around your stoma should look the same as the skin on the opposite side.
- Ensure the hole in your pouch is cut to the correct size. Be aware that stomas change in shape and size in the first 6-8 weeks. It is important to check that you are cutting to the correct size to help avoid leakage and sore skin.
- Avoid any soaps and lotions which contain perfumes and chemicals that could cause unnecessary irritation. Soaps can interfere with the natural pH of the skin and you will be advised by your specialist stoma nurse to use warm water when cleaning your stoma and the skin around it.
- Always consult your specialist stoma nurse if you are experiencing sore skin, they will be able to assess your skin and advise on any changes that are required.
Stomas can change size or shape, particularly in the weeks after surgery.
Some people review the fit of their pouch or explore different options if these changes affect how their system works. Convatec Mouldable Technology™ is designed to adapt to changes in stoma shape and size throughout the day, removing the need for cutting the baseplate.
Explore your stoma product options
Our technologies
Technology designed to support your routine
Learn about technologies such as soft convexity and mouldable solutions, designed to support fit and routine.
Learn More Learn MoreChoosing your product
Choosing the stoma system that’s right for you
Different systems suit different routines. Learn how to explore your options and find what works for you.
Learn More Learn MoreLeak Defence™
Discover Esteem Body™ with Leak Defence™
Soft convexity designed to move with your body and support your day‑to‑day routine.
Learn More Learn MoreFeatured one-piece products
Esteem Body™ Soft Convex One-Piece Closed-end Pouch - with window
Esteem Body™ Soft Convex One-Piece Drainable Pouch - with window
Esteem Body™ Soft Convex One-Piece Urostomy Pouch - with window
Featured two-piece products
Natura® Accordion with ConvaTec Mouldable Technology™
Natura® ConvaTec Mouldable Technology™ Baseplate
Natura® Two-Piece Drainable Pouch
References:
¹The NHS Constitution for England. August 17, 2023. Accessed on October 25, 2025.
https://www.gov.uk/government/publications/the-nhs-constitution-for-england/the-nhs-constitution-for-england
²McNichol L, Cobb T, Depaifve Y, et al. Characteristics of Convex Skin Barriers and Clinical Application: Results of an International Consensus Panel. J Wound Ostomy Continence Nurs. 2021;48(6):524–532. Accessed on October 25, 2025._524-532.pdf)
AP-80400-GBR-ENG-v1 (v1.0)