Retroperitoneal inflammation can happen when harmful bacteria come in contact with the organs in the retroperitoneal space or the lining that encloses your abdominal cavity. Possible causes of retroperitoneal inflammation include:
Complications with organs
• Kidney infections, abscessesTrusted Source, stones, and other causes of inflammation or infection of the kidneys can cause retroperitoneal inflammation.
• A ruptured appendix, stomach ulcers, or a perforated colon can allow bacteria into your retroperitoneal space.
Diverticulitis occurs when small bulging pouches (diverticula) in your digestive tract become inflamed or infected. A complication of diverticulitis is perforation, which means the pouches burst and spill digestive waste into your abdomen.
Complications that cause inflammation can occur from a variety of medical procedures, including:
• gastrointestinal surgery
• feeding tubes
• contaminated equipment
• procedures that use catheters to draw fluid from your abdomen or intestinal organs
Infections can affect the membrane that lines your abdominal wall and covers your organs. These infections can cause inflammation of the membrane.
Courtesy: Health Line