What should you know about chronic stomach bloating?

Bloating may feel like pressure, tightness or visible swelling. It can change during the day and may occur with burping, wind, altered bowel movements or abdominal discomfort. The pattern, associated symptoms and any recent changes in diet or medicines help guide the next step.

Common contributors include eating quickly, fizzy drinks, chewing gum, constipation and sensitivity to particular foods. Some people notice symptoms after dairy products, while others react to a wider range of foods. Lactose intolerance, food intolerance and coeliac disease are examples of conditions that can cause digestive symptoms.

Ongoing bloating can also occur with irritable bowel syndrome. Giardiasis or Helicobacter pylori infection may be considered when bloating is accompanied by diarrhoea, upper-abdominal discomfort or a relevant exposure history. Bloating itself does not identify one specific cause, so avoiding broad food restrictions without guidance may make eating unnecessarily difficult.

Keep a brief symptom diary showing meals, drinks, bowel movements, medicines and the timing of swelling. Eat slowly, chew thoroughly, choose smaller portions if large meals worsen symptoms, and reduce fizzy drinks. Gentle movement and enough fluid can support regular bowel habits.

Do not start a highly restrictive elimination diet on your own, particularly if coeliac disease is being assessed. A clinician or nutrition counsellor can help test dietary explanations while protecting nutritional balance. Arrange a routine appointment if symptoms keep returning, interfere with eating or sleep, or have not improved with simple changes.

Seek urgent medical help for severe or rapidly worsening abdominal pain, repeated vomiting, a markedly swollen or hard abdomen, inability to pass stool or gas, fainting, or blood in vomit or stool. These symptoms can signal a problem that needs prompt examination.

Book a medical assessment for persistent bloating with unexplained weight loss, ongoing diarrhoea or constipation, fever, loss of appetite, difficulty swallowing, or symptoms that repeatedly wake you. A clinician may ask about your bowel pattern, examine your abdomen and decide whether tests are appropriate.

Ask: What causes best fit my symptom pattern? Could constipation, lactose intolerance, coeliac disease or irritable bowel syndrome be contributing? Should I change any foods before testing? Which warning symptoms should prompt urgent care? Would a dietitian or nutrition counsellor help me plan a balanced trial?