Clinical features of diverticulitis

Diverticulitis occurs when small pouches in the bowel wall become inflamed. [Abdominal Pain](/symptoms/abdominal-pain/) is often felt in the lower abdomen and may become persistent rather than coming in brief waves. The area can be tender when touched. Bloating, nausea, fever, constipation, or diarrhoea may occur, and bowel movements can change from your usual pattern. Symptoms may overlap with other abdominal conditions, so the location, onset, examination findings, and general health all matter.

Contact a clinician for ongoing or worsening abdominal pain, especially when it is paired with fever or a bowel change. A [GP Consultation](/treatments/consultations-and-assessment/gp-consultation/) can assess your abdomen, medicines, bowel pattern, and previous episodes. Keep hydrated if you can, follow the eating advice given to you, and do not take laxatives or anti-inflammatory medicines without checking that they are suitable. After recovery, [Nutrition Counselling](/treatments/lifestyle-and-wellness/nutrition-counselling/) may help you build a comfortable, sustainable bowel-health plan.

Seek urgent care for severe or rapidly worsening pain, a hard or swollen abdomen, repeated vomiting, inability to keep fluids down, faintness, confusion, or heavy rectal bleeding. A high fever with marked weakness also needs prompt assessment. Emergency help is appropriate if pain is sudden and severe or you feel seriously unwell.

Ask what may be causing the pain, whether examination or tests are needed, which foods and medicines are suitable during recovery, and how to recognise a recurrence or complication.