When the baby starts exploring its body and discovers his/her pouch, guess what? Off it comes. So change methods. Tape the shirt to the diaper - do not pin it - to keep the pouch out of sight and not hanging loose. Use one-piece outfits, overalls or coveralls when the crawling and toddler stages begin.
Remember, a baby sucks a lot of air with his/her bottle. This will fill up a fecal ostomy pouch with air. Release the gas from the pouch often to prevent it from blowing off. In addition, make sure it is emptied before letting him/her lay on his/her stomach. Bath time can be with or without the pouch. Water does not hurt the stoma.