Peristomal infection is best described as infection around the insertion site.

• A. Stomach lumen
• B. Insertion site around the skin
• C. External bumper
• D. Internal bolster

Answer: (B)

Peristomal infection refers to infection at the skin around the stoma—the skin at the site where the ostomy opening exits the body. This means the infection is located at the skin-stoma interface, not inside the stomach lumen or within the ostomy appliance hardware. The correct description—infection around the insertion site on the skin surrounding the stoma—best captures this localized skin involvement. The other options point to parts of the device (external bumper or internal bolster) or to an area inside the stomach lumen, which are not what peristomal infection describes.