Diverticulitis and stomach bloating: what to know

Diverticulitis is inflammation around small pouches in the bowel wall. Inflammation can disturb the normal movement of gas and stool, so the abdomen may feel full, tight, or swollen. Bloating may occur with pain, constipation, diarrhoea, nausea, or a reduced appetite. These symptoms can overlap with other digestive problems, so bloating alone cannot identify the cause.

A clinician considers where the pain is, how suddenly it began, bowel changes, feverishness, vomiting, and your medical history. A diagnosis may involve an examination and tests chosen for your symptoms. Read more about Diverticular Disease for background on these bowel pouches.

Arrange a GP Consultation if new bloating comes with ongoing abdominal pain or a noticeable change in bowel habits. Until you are assessed, drink fluids if you can, rest, and follow any eating plan already given by your clinician. Do not start laxatives, anti-inflammatory pain medicines, or leftover antibiotics without advice, because the right choice depends on your symptoms and other health conditions.

Keep a brief record of pain, bloating, bowel movements, temperature if you feel feverish, and what you can eat or drink. This helps the clinician see whether symptoms are settling or changing. Constipation can add pressure and discomfort, but treatment should be individualised during an acute episode.

Seek urgent medical help for severe or worsening abdominal pain, repeated vomiting, a swollen abdomen with inability to pass stool or gas, faintness, confusion, or marked weakness. Prompt assessment is also needed for feverishness that persists, blood in the stool, or inability to keep fluids down. These signs can indicate a complication or significant dehydration and should not be managed by waiting at home.

Ask what is most likely causing the bloating, whether you need an examination or tests, which foods and medicines are suitable while symptoms settle, and what change should prompt urgent review. Ask when to arrange follow-up if bloating or bowel changes continue.