HealthMap

Understanding Diverticulosis and Diverticulitis

• Diverticulosis refers to the presence of small outpouchings (diverticula) in the wall of the colon, which typically develop due to structural weakness in the intestinal wall combined with increased pressure.
• A diverticulitis flare occurs when one or more of these pouches become inflamed or infected.

The Chain of Events Leading to a Flare

• Stagnation and Trapping: Undigested food particles, waste, or hardened fecal matter (fecaliths) can become trapped inside the narrow openings of the diverticular pouches.
• Irritation and Pressure: The trapped material causes localized irritation, abrasion of the delicate mucosal lining, and increased pressure within the pouch.
• Bacterial Proliferation: The stagnant environment and compromised tissue create an ideal breeding ground for bacteria to multiply rapidly.
• Inflammation and Micro-Perforation: As bacteria multiply and pressure mounts, the wall of the diverticulum becomes inflamed, swollen, and can suffer a microscopic tear (micro-perforation).
• Infection: This breach allows bacteria and waste to leak into surrounding tissue, triggering an acute inflammatory immune response, which manifests as a painful diverticulitis flare.

Contributing Nutritional and Metabolic Factors

• Low Fiber Intake: A diet lacking in adequate bulk leads to smaller, harder stools, requiring excessive straining and higher colonic pressure to pass waste, promoting the formation and irritation of diverticula.
• Compromised Tissue Integrity: Deficiencies in essential nutrients that support connective tissue health can weaken the structural integrity of the colon wall, making the pouches more susceptible to injury and inflammation.