Dealing with liquid ostomy output – OSTOMY TIPS (w/ video)

Dealing with liquid output

I had previously written about dealing with thick ostomy output, but many ileostomates have the opposite problem: liquid output. In this post, I’d like to go over a few tips that you can use to thicken up your output. These tips apply to colostomates who have loose stools but are directed more towards ileostomates.


Managing liquid ostomy output: Ostomy Care Tips
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Why Worry About Liquid Or Loose Output?

For the most part, there’s nothing really wrong with having liquid or loose output, but it does come with a few challenges:

  • liquid output is more likely to cause leaks.
  • liquid output can shorten the life of your wafer by speeding up erosion.
  • liquid output can clog pouch filters and/or leak through them.
  • emptying a pouch full of liquid can be messy (especially if you have mobility issues).
  • liquid output could lead to dehydration more easily.
  • a high-output stoma could mean that nutrients don’t have time to be properly absorbed.
  • you may need to empty your pouch more often than you’d like.

Causes of Liquid Ostomy Output

Ostomates with Short Bowel Syndrome are more prone to having liquid output with fast transit of their food through their small intestine, but there are other reasons which can cause it too.

Here are a few of the more common causes:


The following foods and beverages can cause a dramatic change in your output’s consistency. You’ll likely be able to identify the culprit within hours of consuming them:

  • Coffee or tea
  • Sport drinks
  • Soda/Pop/Soft drinks (both diet and regular )
  • Fruit juices
  • Chocolate
  • Certain fruits (for me, it’s cherries)
  • Artificial sweeteners
  • Alcoholic beverages (especially wine)
  • Fried foods
  • Hot/spicy foods
  • Non-vegan foods like dairy (or other lactose-containing food, if lactose intolerant)

For the most part, very few of the items listed are needed (or desired) in a healthy diet, so if you can cut them out, you’ll find benefits in more than one way.

Drinking with meals or drinking too much at one time can loosen your output too.

Laxatives, Medication & Supplements

Some medication or supplements can cause our output to become loose. If you are taking a laxative, it may also cause loose stools.

Antibiotics can cause liquid output (diarrhea) that tends to pass within a few days.  You may be asked to take a probiotic while you are on antibiotics to help balance out your gut flora.  Keep in mind that you should never stop taking antibiotics until you’ve completed the full course.

Viral or Bacterial

There are many types of bacteria and viruses that can cause diarrhea or liquid output. If you’ve experienced an unusual change in your output, you may fall into this category.


When you experience a blockage, your body will try to flush out the blockage, which can result in liquid output.

I didn’t have this at all for my last blockage, but many ostomates report having liquid output while they were obstructed.

This will usually be accompanied by other symptoms that are typical for a blockage like abdominal pain, pain with peristalsis (this comes in waves as your gut tries to move things along), nausea and possibly vomiting.

If you suspect a blockage, you’ll want to contact your GI or head to your local ER.

For tips on preventing and dealing with blockages, see THIS article.

Tips for Dealing With Liquid Output

Talk to your doctor if you suspect food poisoning or another bacterial/viral cause of your liquid output. As suggested above, if you suspect a blockage, you’ll want to contact a medical professional.

For “normal” causes, you might want to try the following tips:


One of the most effective ways to deal with liquid output is to make a few dietary changes or modify the way you eat.

Keeping your meals and beverages separate, or drinking throughout the day (rather than in one sitting) can help.

The following foods are also known to thicken ostomy output:

  • Starchy foods like pasta, potatoes, rice, white bread
  • Crackers
  • Potato chips
  • Applesauce
  • Bananas (especially when under ripe and without spots)
  • Nut butters (peanut, almond, sunflower seed, etc)
  • Oatmeal

Most of these foods can be considered healthy, although, don’t depend too much on the white bread, white pasta or chips if you don’t need to.

I remember one fellow I spent a hospital room with had to consume several bags of potato chips plus Imodium to slow his output down because of his short bowel.

Gelling agents

A popular choice among ostomates is to use gelling agents in their pouch.

These can come in tablets, powder, capsules (usually made with animal ingredients) or sachets, but they all work in a very similar fashion: Add the gelling product to your pouch as directed and it will thicken up when it comes in contact with your output.

Here’s a demo of how gelling products work:

Ostomy product: ConvaTec Diamonds - gelling time-lapse
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I’ve reviewed the ConvaTec Diamonds sachets, but I’ve also tried other products and they generally work well. You should be able to get samples to try.

Anti-Diarrheal Medication

Many ostomates will be told by their doctor or stoma nurse to take a product like Imodium to slow down their output. I would personally try this last if all other options failed, however, if you have a very high-output stoma which is causing ongoing nutritional problems or dehydration, this might be an option you’ll want to try until things get stabilized.

Fibre Supplements

This is not an option I’d recommend, nor is it something that your doctor is likely to recommend either. There are fibre supplements which can bulk up stool but they carry a risk of causing a bowel obstruction too. Do not try this unless explicitly told by your doctor.

Guar Gum

Guar gum is made from guar beans, but it’s been used as a thickening agent in various products for quite some time. There are claims that it has eight times the water-thickening effect compared to cornstarch, which is pretty impressive!

As a supplement, this often comes in tablets, but you should consult with your doctor to see if it’s a good option for you. Like fibre supplements, there’s a risk of slowing things down too much.

Consider Using a High-Output Appliance

If you find that your liquid output is difficult to manage when you’re wearing a traditional ostomy pouch, consider a high-output appliance.

These styles of pouches have larger capacities and are designed to better manage liquid output.

Coloplast Sensura mio high output click front
Front of the two-piece high-output appliance.

The product in the photo above is one of Coloplast’s high-output appliances. I did an overview of them HERE, and it may be an option worth considering.

Closing Thoughts

Some ostomates don’t mind liquid or loose output.

But if you’re one of the people who find liquid output to be problematic, then I hope the suggestions listed will come in handy.  

In addition to the tips included above, you may also want to try using barrier rings or moldable wafers to help prevent liquid output from leaking under your appliance.

QUESTION: What do you do to thicken your output?

111 thoughts on “Dealing with liquid ostomy output – OSTOMY TIPS (w/ video)”

  1. Gardengypsy … Hi Mere !  Lets start with a few questions.
    Are you using the Skin Barrier Wipes & or Spray? How are you using them? How many wipes? 
    What kinds of fluids are you drinking? 
    Do you lay flat to sleep? 
    Have you tried journaling your intake of foods & fluids to see if this helps you figure out what may he causing the issues? Sometime output colour will give you a clue as to whats going on. Yellow- ish if your drinking Orange Juice it may be too high acid. Scale back on acidic fluids. Do you drink milk products at all?  What kind?   I drink about 4 glasses a day & really notice when I do not. Even odour increases when I don’t drink milk products. 
    Do you have any open sores under your wafer ?  If so have you seen a. Ostomy Nurse or your GP about these issues?   If you can’t  see one, what have you tried to heal your skin? 

  2. Has anyone tried waiting to drink liquids an hour before and an hour after eating? Sometimes it works for me, often not. When I limit my water this way, I end up feeling dehydrated.

  3. I have a very liquid output at the moment after a couple of days with smelly output, I am about to change my bag for the 4th time today, yes that’s a problem but how can I stop the burning as it really hurts, pls help, not handling the burning at all ?

    • Hi Ruth,

      I’m sorry to hear that you’re going through that. The smelly output may give some clues as to what’s going on, but there are a lot of variables to consider. I hope this article gave you some starting point to investigate.

      The burning is a problem and could get much worse if not addressed. Do you have a stoma nurse you can speak to?

      My suggestions would be to use a gelling product inside of your bag and a barrier ring until your skin is given some time to heal. Dietary modifications can also help, but that depends on why the output is smelly.

    • Skin prep. / barrier wipes are often used to protect the skin from output. I don’t know if you’re familiar with these products. There are many companies that make them.

  4. You can try contacting trio in the UK I have found them helpful.
    “introduction of Trio products into over 20 new countries over the course of 2021.”
    customer service

    For any help, advice or information about Trio products, please call our freephone number below. Alternatively, you can email us on our Customer Services email. The team are always happy to answer any questions that you may have about your ostomy, products and much more.
    United Kingdom: 0800 531 6280International: +44 (0)844 800 5881Email:

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