Bloating: When it’s Normal and When to See a Doctor

15 Sep 2025

Most of us have experienced bloating at some point. It’s that uncomfortable, swollen feeling in the stomach that often follows a heavy meal or fizzy drink. For many people, it’s harmless and temporary. But when bloating becomes frequent, painful, or unexplained, it can sometimes point to an underlying health issue. 

In this article, we’ll look at the common causes of bloating, when it’s considered normal, and when it’s worth seeking medical advice.

Everyday Causes of Bloating 

Bloating is often linked to diet and lifestyle habits. Some of the most common everyday triggers include: 

• Overeating – Large meals can cause temporary stomach distension. 

• Carbonated drinks – Fizzy drinks introduce excess gas into the digestive system. 

• Eating too quickly – Swallowing air while eating can contribute to bloating. 

• Certain foods – Beans, lentils, onions, and cruciferous vegetables (like broccoli and cabbage) are known to produce gas. 

• Hormonal changes – Many women notice bloating around their menstrual cycle due to natural fluid retention. 

These types of bloating are usually short-lived and improve with small lifestyle adjustments. 

When Bloating Might Mean Something More 

Persistent or severe bloating, especially when accompanied by other symptoms, may suggest an underlying health condition such as: 

• Irritable Bowel Syndrome (IBS) – A common digestive disorder causing bloating, cramps, diarrhoea, or constipation. 

• Food intolerances – Sensitivity to lactose, gluten, or certain carbohydrates can cause bloating after meals. 

• Coeliac disease – An autoimmune reaction to gluten that affects the small intestine. 

• Ovarian problems – In women, ongoing bloating may be a sign of gynaecological issues that require investigation. 

• Digestive infections – Bacterial overgrowth or parasites can sometimes lead to abdominal discomfort and swelling. 

Because these conditions overlap in symptoms, professional assessment is often needed to identify the cause. 

If bloating is persistent or unexplained, a Private GP Appointment can help you decide on the next steps. 

Red Flags You Shouldn’t Ignore

Most bloating isn’t serious, but there are times when you should seek medical help promptly. Speak to a doctor if bloating is accompanied by: 

• Unexplained weight loss 

• Severe or worsening abdominal pain 

• Blood in your stool 

• Persistent diarrhoea or constipation 

• Loss of appetite 

• Frequent bloating that doesn’t improve with lifestyle changes 

These symptoms may require further investigation, such as blood tests, stool tests, or imaging, to rule out more serious conditions.

Simple Checks That Can Help

If you’re struggling with frequent bloating, some simple tests may provide answers: 

• Food intolerance checks – Identifying triggers like lactose or gluten. 

• Stool tests – Checking for infections or signs of inflammation. 

• Blood tests – Assessing for coeliac disease, anaemia, or vitamin deficiencies. 

• Hormone checks – Useful for women experiencing bloating alongside irregular cycles or other gynaecological concerns. 

At South Kensington Medical & Dental, we provide a range of Blood Tests and Women’s Health Examinations to investigate persistent bloating.

Managing Everyday Bloating at Home

While medical checks are important if bloating is ongoing, simple lifestyle adjustments can also make a difference: 

• Eat smaller, balanced meals 

• Chew food slowly and avoid rushing meals 

• Limit carbonated drinks 

• Keep a food diary to identify potential triggers 

• Stay active to aid digestion 

These steps may help reduce everyday bloating, but they shouldn’t replace medical advice if symptoms persist.

When to Take Action

Occasional bloating is a normal part of life, often linked to diet or hormonal changes. But if bloating becomes frequent, painful, or is linked to other concerning symptoms, it’s best not to ignore it. 

Early assessment can rule out serious conditions and give you peace of mind. Whether it’s a simple intolerance or something requiring further care, support is available.