Gas and odour can be highly embarrassing and deter you from leaving the house. A person living with an ostomy should not feel they have an odour. If your ostomy is smelling, your ostomy appliance is not fitting correctly, and you are leaking. Sometimes this leak is not visible, and the gas escapes under the flange. See your ostomy nurse for help in troubleshooting this problem.
Gas is normal, and all people produce gas. When you have a fecal ostomy, gas is captured in the pouch, making it more noticeable as it balloons up. Many ostomy pouches have a slow-release filter built-in; however, these do not always work, especially if you have an ileostomy, as the stool is too liquid and the filter blocks.