Frequently Asked Questions on Two-Piece System


What does a two-piece ostomy system mean?

In a two-piece ostomy system, the ostomy bag is separate from the skin barrier. The skin barrier is fixed on the peristomal skin of the stoma using adhesives and then the ostomy pouch is attached to the barrier. The barrier and bag may be linked using adhesives or a coupling system.

What are the benefits of a two-piece ostomy system?
  • Better visibility while measuring baseline hole that fits effectively around the stoma
  • Less irritation to the skin as pouch can be replaced without changing the baseline
  • The pouch can be opened from top to let out excessive air
How often to change a two-piece ostomy pouch?

Many change the ostomy pouch within 3 to 7 days or if there is itching or burning under the baseplate. It is recommended not to wear the pouch for more than seven days.

How to empty out a two-piece ostomy system?

The stoma bag can be cut and its content flushed down the toilet and the bag disposed of. Alternately, the pouch can be disposed of along with its content into a disposal bag. Seal the bag, put it into the domestic refuse bin and wash your hands.

How to change a two-piece ostomy bag?
  • Wash your hands
  • If using drainable bag, flush content down the toilet
  • Apply adhesive remover over the top and remove flange from the corners
  • Peel the flange, apply additional remover in case needed
  • Remove excess soiling over stoma and surrounding skin with non-woven swab  
  • Wash stoma and surrounding area with water and let it dry
  • Check size of stoma and if adjustments required then cut hole in skin barrier
  • Apply barrier wipes over the skin around stoma and let it dry
  • Peel off cover from adhesive flange
  • Place flange over the stoma and smoothen it out without any wrinkle
  • Hold it in place for 30 to 50 seconds to make it stick better
  • Attach the bag to flange making sure bag and flange are connected