Over the last decade there has been a striking shift in our understanding of the epidemiology, pathology, and management of diverticular disease. Indeed, many of the guidelines published in the late nineties and early 2000s are now redundant. High-fiber diets, avoidance of nuts and seeds, antibiotic treatment for mild diverticulitis, elective resection after 2 attacks of diverticulitis, Hartmann's procedure (HP), and aggressive management of young patients are all open to question. The more we challenge our understanding of diverticulitis it becomes apparent how little we know about this disease entity. This review aims update the reader on current hypotheses and evidencebased modern management strategies in diverticular disease.