Bloating

Bloating is a feeling of fullness, pressure or swelling in the abdomen, sometimes with visible distension. Food, swallowed air, constipation and digestive conditions can contribute. Persistent or new bloating deserves assessment when it is unexplained, affects daily life or occurs with pain, weight loss, bleeding or other changes.

Is bloating always caused by food intolerance?

No. A meal-related pattern may be relevant, but it does not prove an intolerance. Constipation, changes in bowel function and other conditions can cause similar symptoms. Broad food exclusions can make eating harder without identifying the cause.

Keep a short record of timing, meals, bowel movements and associated pain. Note whether your abdomen actually changes size, whether symptoms settle overnight and whether you feel full unusually quickly. Mention menstrual changes, urinary symptoms, vomiting and any unintentional weight loss.

For the Australian guidance behind this explanation, see Healthdirect Australia: Bloating - causes, treatment and prevention - Healthdirect Australia.

How is it investigated?

A doctor reviews the pattern and may examine the abdomen. Tests depend on the findings, age and history rather than being the same for everyone. Persistent symptoms should not automatically be labelled IBS without considering other explanations.

Ask whether simple adjustments, a dietary review or further investigation is appropriate. If a trial change is suggested, agree on its duration and what outcome to look for. Avoid making several major diet changes at once, because it becomes difficult to tell what helped. A dietitian can support nutrition when restrictions are being considered.

When should I seek prompt help?

Severe pain, persistent vomiting, significant swelling with inability to pass stool or gas, or blood in the stool needs urgent assessment. Ongoing early fullness, unexplained weight loss or a persistent new pattern also warrants medical review. Telehealth can help start the history, but an abdominal examination may be needed. Do not rely on a reassuring label if symptoms are progressively changing.

Where to go next

Read online doctor consultations to understand the relevant service. A doctor decides whether a consultation, examination, referral or another pathway is appropriate for your situation.