Colostomy gas is different from regular flatulent emissions (farts). While you may be able to control a regular fart with rectal sphincter control, you cannot control when your colostomy releases gas.
Nobody wants to release noisy gas or odors at the wrong time. This fear can cause anxiety, apprehension, and even an avoidance of social situations. In time, you may become more attuned to the feel of your colostomy and feel when you are about to pass stool or gas, although you still will not be able to stop it.
Rather than hiding in embarrassment, there are ways to diminish the odor and noise of a colostomy. It might require a little experimentation on your part, but different appliances are specifically made to help stop excessive odors and noise.
Check the Fit of Your Colostomy Bag
If your colostomy bag is not seated around your stoma properly it can leak air, odor, and even fecal contents. 1 With a properly fitted colostomy bag, the only time you should smell anything foul is during the bag change.
Any system should last for at least three days without leakage (optimally, some systems can remain in place for four or five days). The majority of pouches now include an odor-blocking feature such as a charcoal filter.
If your bag is not sealing properly around the stoma then gas and odors might be the least of your worries-an improper fit can cause damage to the stoma and surrounding tissues.
Try Different Pouching Systems
This is where your enterostomal nurse (ET nurse) comes in very handy. There are many different types and manufacturers of ostomy supplies. Ask anyone who has had a colostomy for a while-all devices are not made alike, just as our bodies are not made alike. Simply because one bag works well for someone else does not mean it will fit you.
There are two main types of colostomy drainage bags-one-piece and two- piece systems. 2 One-piece systems are more frequently used for their low profile (less visibility under clothes) and for their ease of use. You can get one- piece systems that are closed (you have to remove the entire system if the bag is puffed up with gas, or open (a clip at the bottom can open the bag and you can release the gas from the bag). Some manufacturers also supply vented or filtered pouches, which are specifically designed to help release gas without any fuss.
For more detailed information on pouching systems and free samples, contact the United Ostomy Associations of America at 1-800-826-0826. 2 They also have assistance for people who are not health insured and can help you obtain supplies.
Stoma Noise Decoder
If It Doesn’t Fit, Don’t Patch It
After applying the pouch, don’t try to patch up leaks or ill-fitting areas with pastes or tape. If the bag is not fitting right then you probably need a new
After tracking colostomy gas + embarrassment patterns across the Stoma Stifler community:
- Colostomy gas is typically episodic (vs continuous ileostomy gas) — meaning prevention is about timing, not constant management.
- The food-trigger window is typically 4-8 hours before the gas release. Foods eaten yesterday rarely affect tomorrow.
- Pre-emptive emptying + strategic timing of trigger-food meals (e.g., avoid before social events) is the most consistently reported strategy.
- Sound-dampening products genuinely reduce embarrassment because they reduce the part readers actually fear: the public NOTICE of the sound.
system. 1 Your ET nurse will be able to assess what type of bag system will fit your body best by taking your skin and body contours into consideration. Scars, wrinkles, and even moist skin can make a difference and help determine what type of pouching system will work for you.
Deodorants for Colostomy Odors
To help decrease odors, many manufacturers supply special liquid drops that can be added to your colostomy bag. There are also supplements that can be taken by mouth to reduce gas odor. However, it is highly recommended that you discuss these products with your healthcare provider and do not arbitrarily try them on your own.
Diet to Reduce Colostomy Gas
Once your body is fully healed after bowel surgery, you should be able to eat
anything you like. There is one caveat-the same foods that caused gas before
your surgery will continue to give you gas now. If you want to cut down on your
body’s noisy emissions, try limiting the gas-producing foods and beverages in
your diet including:
- Cabbage
- Onions
- Broccoli
- Carbonated beverages (especially beer)
- Dairy products
- Spicy or fried, greasy foods
- Onions 1
Furthermore, chewing gum and drinking through straws pulls unnecessary gas into your digestive tract and can increase the amount of gas passed through your colostomy.
Some foods might help decrease the natural odor of your gas and stools including parsley and yogurt.
When in doubt, try keeping a food journal so you can learn what helps and what makes things worse for you.
What to do in the moment gas escapes in public
Even with a good routine, a stoma will occasionally make itself heard at the worst possible time — and how you handle that moment matters more than the sound itself. The most disarming move is simply to carry on as if nothing happened; people take their cue from you, and a calm non-reaction signals there is nothing to remark on. If you would rather acknowledge it, a light, prepared line — an “excuse me” in the same tone you would use for an ordinary stomach gurgle — ends the moment far faster than visible embarrassment does. It also helps to remember how much ambient noise covers: in a restaurant, a meeting, or a moving car, the sounds you are bracing for are usually inaudible to the person across from you. The flinch you feel is real, but the spotlight you imagine is mostly your own.
Build a discreet go-bag for outings
Confidence in public often comes down to knowing you are prepared, so a small kit takes the worry out of leaving the house. Keep a few odor-control drops, a spare bag and wafer, adhesive-remover wipes, a small sealable bag for disposal, and your sound-dampening cover together in one pouch. With it on hand, an unexpected leak or a louder-than-usual day becomes a two-minute fix in a restroom rather than a reason to cut the outing short. Many ostomates also build “quiet windows” into their plans — eating known trigger foods earlier in the day so the gas has resolved by an evening event — which turns the calendar itself into a gas-management tool. For the complete playbook on quieting a colostomy at the source, with diet, pouching, and the device layer together, see our guide on how to stop stoma noise.
Stoma Stifler™ — The Sound Suppressor + Stoma Guard Most Ostomates Wish They’d Found Sooner
Helpful products on Amazon
The most-recommended products for managing colostomy gas. The links go to tagged Amazon searches so you can compare options.
The clinical context for colostomy gas and odor management:
- Quality of life is at stake — and nurse support helps. A 2018 review found ostomy surgery can impair quality of life, and that involving an ostomy nurse increases acceptance, reduces complications, and improves quality of life. According to PubMed (DOI 10.3238/arztebl.2018.0182).
- Your stoma type shapes your baseline. A 2025 systematic review comparing ileostomy and colostomy found meaningfully different complication profiles, with ileostomy showing fewer overall complications. According to PubMed (DOI 10.3389/fmed.2025.1610213). Output consistency differs by stoma type as well, which is part of why your gas and noise pattern is partly set by which stoma you have.
- Most stoma issues respond to conservative care. A 2019 review documents that the majority of stoma complications are managed without surgery — through pouching technique, dietary adjustment, and skin care. According to PubMed (DOI 10.1055/s-0038-1676995). The same levers that manage those issues are the ones that cut gas and noise.
- Know what is worth a nurse check. A 2023 mapping review catalogs structural stoma complications — retraction, stenosis, prolapse, parastomal hernia — and notes most are managed conservatively while some need surgical revision. According to PubMed (DOI 10.1186/s13017-023-00516-5). If your pattern changes suddenly and stays changed, have a stoma nurse rule these out.
Affiliate disclosure: This article contains Amazon affiliate links. As an Amazon Associate we earn from qualifying purchases — at no extra cost to you. Recommendations are based on what stoma nurses and the ostomy community consistently mention; the links go to tagged Amazon searches so you can compare options rather than being pushed toward a single product. Read our full disclosure here.
Frequently Asked Questions
Is what I'm experiencing normal after ostomy surgery?
Most concerns ostomates have – bag noise, gas, occasional leaks, skin irritation, body-image adjustment – are normal in the first 6-12 months. The frequency and intensity drop significantly as your body adapts and your routine settles. Reach out to your ostomy nurse if anything feels worsening rather than improving.
When should I call my ostomy nurse or doctor?
Call promptly for: peristomal skin that's painful, bleeding, or breaking down; stoma color changes (dusky, purple, pale); no output for 4-6 hours with cramping (possible blockage); high output that won't slow despite reducing fiber and adding electrolytes; or a hernia bulge that becomes painful or won't reduce. Most other concerns can wait for your next scheduled appointment.
Does the Stoma Stifler help with this?
The Stoma Stifler is designed to quietly absorb gas and reduce bag noise without restricting output. It works with your existing pouching system and doesn't interfere with skin care or wafer adhesion. Pairing it with the basics – good skin routine, hydration, and any complementary supplies above – covers most daily-comfort challenges.