No-surgery or Presurgery Diverticulitis Recurrence Risk

I found some interesting data on recurrency rates that I thought was worth sharing:

Clinical data from the AGA (American Gastroenterological Association) and ASCRS (American Society of Colon and Rectal Surgeons) confirms that roughly 80% of people who have one flare-up never have another.
However, for those of us in the '20% club' recurrence risk gets cumulative. According to data analyzed in the Cleveland Clinic Journal of Medicine (2023) and foundational studies in Gastroenterology:

After 1 Episode: ~20% risk of another.
After 2 Episodes: The risk of a third jumps to ~50-55%.
After 3 Episodes: The risk of a fourth climbs to over 80%.

The real takeaway from modern medical literature is that recurrence predicts recurrence, not emergency. While 75% of life-threatening ruptures happen during the first flare, the '20% club' who experience multiple episodes are the primary group prone to 'Smoldering' Diverticulitis. Since this affects roughly 10% of all patients, it actually represents nearly half of those who suffer from recurrences. It’s a state of chronic, persistent scarring and pain. Because this is a mechanical issue caused by permanent tissue changes, it often doesn't respond fully to antibiotics. If left unaddressed, this chronic state can lead to two major complications: Strictures (where scar tissue narrows the colon until it's nearly blocked) or Fistulas (where chronic inflammation 'erodes' a path into neighboring organs like the bladder). For many, a planned surgical fix becomes the most effective way to break this cycle and prevent these structural failures before they become emergencies.