What should you know about pan colonic diverticular disease?

Diverticula are small bulges that form through weaker areas of the colon wall. Their presence is called diverticulosis. Some people have no symptoms; others notice lower abdominal discomfort, bloating or altered bowel habits. When a pouch becomes inflamed, diverticulitis can cause more persistent pain, tenderness and fever. Bleeding or a change in bowel habit has several possible causes and should be assessed rather than attributed automatically to diverticular disease.

Keep a record of pain, bowel movements, food patterns and any bleeding to discuss at an appointment. If constipation is present, gradual fibre changes, adequate fluids and regular movement may help, but increase fibre cautiously if pain is active. Do not start laxatives, anti-inflammatory medicines or antibiotics for a flare without advice. A clinician may tailor dietary guidance and decide whether tests are needed.

Seek urgent medical care for severe or worsening abdominal pain, a rigid or very tender abdomen, persistent vomiting, fever with significant pain, inability to pass stool or gas, faintness, or heavy or ongoing rectal bleeding. Arrange a GP consultation for recurrent discomfort, new constipation, diarrhoea, weight change or symptoms that do not settle. Assessment helps distinguish uncomplicated disease from inflammation or another bowel condition.

Ask whether your symptoms suggest diverticulosis or diverticulitis, how to adjust fibre safely, which pain medicines are suitable, and whether you need blood tests, imaging or bowel examination. Nutrition counselling may help if food choices are difficult or symptoms recur.