All urinary pouches have anti-reflux devices to prevent backflow of urine toward the stoma.

• A. False
• B. True
• C. Only some pouches have them
• D. They have no anti-reflux features

Answer: (B)

Urinary pouches are designed with one-way flow to protect both the stoma and the kidneys. When urine moves from the internal urinary conduit into the bag, an anti-reflux feature—such as a built-in valve or flap—prevents urine from flowing backward toward the stoma or up toward the ureters, even with changes in body position or pressure. This safeguards against backflow that could irritate the stoma or risk kidney issues. Because this one-way protection is standard in modern urinary pouches, the statement is true.