Basic colostomy care means emptying the pouch when one-third to one-half full and changing the pouching system every 2 to 5 days.
The basics aren’t complicated—two habits do most of the work. Empty the pouch before it reaches half full, and change the whole system on a regular schedule. Get those right, and you prevent most leaks, skin irritation, and odor.
Emptying the Pouch: Do It Before It’s Half Full
Waiting too long is the most common cause of leaks and bulging. Empty when the pouch is one-third to one-half full. For a drainable pouch, sit on or near the toilet, open the tail or clip, and empty into the bowl. Wipe the tail clean with toilet paper before reclosing. Wash your hands with soap and water before and after care to cut the chance of spreading bacteria.
How to Change a Colostomy Bag, Step by Step
Changing the system takes about five to ten minutes. Here’s the sequence most clinicians teach:
- Gather supplies: a new pouch, baseplate or wafer, disposal bag, scissors, warm water, a towel, and adhesive remover if used.
- Empty the old pouch into the toilet to reduce weight and spill risk.
- Gently peel the skin barrier off while supporting your skin. Adhesive remover can help but isn’t always required.
- Clean the stoma and surrounding skin with warm water. If you use soap, ensure it’s mild and free of alcohol, perfume, and lotions.
- Pat the skin completely dry—adhesion fails fast on damp skin.
- Measure the stoma and cut the wafer opening about 1/8 inch larger. A tight opening injures the stoma; a loose one invites leaks.
- Press the new barrier firmly against your skin and hold for at least 45 seconds so the adhesive sets. The pouch should lie flat with no wrinkles.
Check that the pouch sits at a comfortable angle and the filter tab is open if present. If you’re choosing a bag for an elderly family member, our tested guide to colostomy bags for elderly users covers options that hold up well.
How Often Should You Change a Colostomy Bag?
The schedule depends on pouch type and fill speed. With a drainable bag, empty several times daily and replace the system every few days. With a closed bag, replace after each use—one to three times daily. Guidance varies by institution, and every stoma nurse adjusts to the individual. Here’s how sources line up:
| Source | Recommended Frequency | Notes |
|---|---|---|
| Mayo Clinic | Every 1–4 days in hospital; 1–2 times weekly at home | Easier when bowel activity is lower |
| MedlinePlus | Every 2–4 days | Or as directed by your nurse |
| MSKCC | Every 3–5 days | Depends on stoma type and pouch |
| Healthline | At least twice a week (drainable bags) | Typical manufacturer suggestion |
| NHS | Closed bags 1–3 times daily; drainable every 2–3 days | Based on output and bag style |
If the pouch leaks around the edges or skin under the barrier feels irritated, change sooner. The odor-reducing filter on a drainable pouch fades after three to four days, which is why most manufacturers recommend changing at least twice a week.
Common Mistakes That Cause Leaks and Irritation
- Letting the pouch get too full. The weight peels the baseplate off, and bulging is uncomfortable.
- Cutting the opening too big or small. A large gap exposes skin to output; a tight opening injures the stoma.
- Skipping the dry-down. Moisture under the barrier is the fastest way to lose adhesion.
- Changing at the wrong time. Change when bowel activity is low, such as early morning or between meals.
- Rinsing the bag if not instructed. Some pouches are single-use—follow manufacturer guidance.
Minor stoma bleeding during a change is often normal. But if the stoma changes size, color, or shape, or skin stays red and raw, tell your stoma nurse. They can adjust the pouch type, barrier fit, or routine before small problems become leaks.
FAQs
What should I do if my stoma bleeds a little during a bag change?
Minor bleeding from the stoma surface is often normal when the barrier is peeled away or skin is wiped. If bleeding continues beyond a few minutes, the stoma changes size, or you notice blood in output, contact your stoma nurse or doctor. Persistent skin redness, soreness, or leakage also deserves professional attention.
Can I use regular soap to clean around my stoma?
Many clinicians say plain warm water is sufficient because soap residue can interfere with adhesive. If you prefer soap, choose a mild, fragrance-free version without alcohol, perfume, or lotions. Rinse thoroughly and dry completely before applying a new pouch. If redness or sticking problems appear, switch back to water-only.
How can I reduce odor from a colostomy bag?
Empty before it reaches half full, since a fuller bag smells more. Keep the filter open if present, and note the filter fades after three to four days, so changing on schedule helps. Some use a pouch deodorant—check with your supplier. Avoid rinsing bags not designed for it.
References & Sources
- Mayo Clinic. “Colostomy: About This Procedure.” Outlines pouch-changing frequency and general colostomy care guidance.