Bloated Stomach: Causes, Prevention & Quick Relief

Bloating is when your tummy feels full, tight or swollen. Sometimes you can see the swelling too — your abdomen looks larger than usual, which doctors call distension. Bloating and distension often happen together, but either can occur on its own.

It is one of the most commonly reported gut symptoms, and almost everyone has felt a mild version of it after a heavy meal. For many people it passes quickly. For others it returns often enough to affect appetite, clothes and comfort through the day.

Most bloating comes down to gas in the gut. Gas has two sources: air you swallow, and the breakdown of food that was not digested properly by bacteria in the large intestine. How quickly your gut moves also matters, because slow movement gives gas more time to build up.

Most cases have an everyday explanation. In people with irritable bowel syndrome (IBS), bloating is very common — reported by a large majority of those with the condition.

• Swallowed air, or eating more than usual — Burping, and bloating that is worse when you eat fast, chew gum, smoke or drink fizzy drinks
• Gas from undigested food — Wind, rumbling, and bloating that follows certain foods
• Acid reflux or GERD — Bloating along with heartburn
• Constipation — Bloating that builds through the day, with hard or infrequent stools
• Lactose intolerance or other food intolerance — Bloating, wind and loose stools after milk, dairy or other specific foods
• Irritable bowel syndrome — Recurring bloating with tummy pain and a change in bowel habit
• Small intestinal bacterial overgrowth — Bloating that keeps coming back
• Hormonal changes around your period — Bloating in the days before a period
• Weight gain — Bloating that has become more frequent as your weight has gone up
• Some medicines and sweeteners — Bloating after medicines such as acarbose, or products containing lactulose or sorbitol

If you think a medicine you take is causing your bloating, do not stop or change it on your own. Ask the doctor who prescribed it — there may be another option.

A smaller number of people have a more serious cause. Bloating that does not go away can sometimes be a sign of something that needs treatment. Causes include ovarian cancer, coeliac disease, a build-up of fluid in the abdomen, and a pancreas that is not making enough digestive enzymes. These are far less common than gas and constipation, but they are the reason persistent bloating should always be checked rather than managed indefinitely at home.

Foods affect people differently — a food that causes gas in one person may be fine for another. The ones most often reported are:

• Pulses and beans, including rajma, chana, dal and lentils
• Cabbage, cauliflower, broccoli, Brussels sprouts, turnips, onions and garlic
• Fizzy drinks, alcohol, and large amounts of tea or coffee
• Sugary, spicy, processed and very fatty foods
• Milk and dairy, if you are lactose intolerant
• Sugar-free gum, sweets and diet drinks containing sorbitol, mannitol or similar sweeteners
• Foods high in fructose, such as some fruits and sweetened drinks

Fibre cuts both ways. Insoluble fibre, such as bran, can increase gas and bloating, while soluble fibre — oats, psyllium and linseed — is usually better tolerated. This matters if you are adding fibre to treat constipation.

Rather than cutting out foods one by one on guesswork, keep a simple diary of what you eat and the symptoms you get. A pattern is much easier to see over two to three weeks than from a single meal.

These steps can ease bloating that has already started. Work through them in order, and give each one a little time.

1. Move around. A walk helps your gut move trapped gas along, and exercise can also help when you are feeling bloated.
2. Massage your tummy. Using gentle but firm pressure, massage from your right side towards your left in slow strokes. This helps release trapped wind.
3. Sip water and skip fizzy drinks. Still water is kinder to a bloated gut than anything carbonated. Avoid alcohol and strong coffee until you feel better.
4. Do not skip meals or bolt your food. Eating slowly, with your mouth closed, means you swallow less air. Large meals late at night are more likely to leave you bloated.
5. Treat [constipation](https://www.platinumrx.in/diseases/constipation/12) if you have it. Bloating often improves once your bowels move regularly. A pharmacist can advise on a suitable laxative.
6. Ask a pharmacist about medicine. Simethicone is an anti-gas medicine used for occasional bloating, pressure and the discomfort of gas. Chewable forms are chewed completely rather than swallowed whole, and are usually taken after meals and at bedtime. Strengths differ between products, so follow the directions and the daily maximum printed on your pack, and check with the pharmacist that the product is suitable for you. If you have cramps and wind, a pharmacist can also advise on peppermint oil capsules.

Activated charcoal capsules are sometimes used for gas. They can turn your stool black, which is harmless but worth knowing so it does not alarm you later. Charcoal is not selective: it can also make it harder for your body to absorb other medicines you take by mouth. Leave at least one to two hours between charcoal and your other medicines.

If you are pregnant or breastfeeding, ask a pharmacist or doctor before taking any medicine for bloating — including anti-gas medicines, laxatives and peppermint oil.

In India, a medicine that combines two or more active ingredients is regulated as a fixed dose combination and needs central approval. Different packs can contain different active ingredients, so read the ingredients list on the exact pack you buy.

If these steps do not help and the bloating keeps returning, it is time to see a doctor rather than to keep self-treating.

Prevention is mostly about eating habits and regular bowel movement.

• Eat smaller, more frequent meals instead of a few large ones.
• Do not slouch while eating.
• Drink plenty of water through the day.
• Limit fizzy drinks, alcohol, and too much tea or coffee.
• Stay active. Regular exercise helps your digestion.
• Get enough fibre — adults need at least 25 g of naturally occurring fibre a day, from whole grains, pulses, vegetables and fruit.
• Cut back on processed, sugary, spicy and very fatty foods.
• If you already know a particular food is a problem for you, avoid it.

Pulses are a valuable part of a balanced Indian diet, so if rajma, chana or dal seem to trigger your bloating, try smaller portions rather than removing them altogether. If you find yourself avoiding many foods, ask your doctor about a referral to a dietitian — long-term restriction can leave gaps in your nutrition.

IBS is one of the most common reasons for recurring bloating. If you have been diagnosed with IBS, there is no single diet or medicine that works for everybody, but several approaches can help.

A short trial of a low-FODMAP diet may reduce bloating. FODMAPs are fermentable carbohydrates found in foods such as wheat, onions, garlic, pulses and some fruits. This diet is best done with a trained dietitian, including a planned reintroduction of foods, because staying on a restricted version for a long time can lead to nutrient gaps. It is also worth knowing that a low-FODMAP diet is not clearly better than other dietary approaches — it helps some people, not everyone.

Other options a doctor or pharmacist may discuss:

• Probiotics, tried for about a month, may help symptoms linked to changes in gut bacteria.
• Antispasmodic medicines may ease IBS pain and cramping. In India, these are prescription medicines: dicyclomine and mebeverine are both listed in Schedule H of the Drugs and Cosmetics Rules, so they cannot be sold without a doctor's prescription. Ask your doctor whether one is suitable for you.
• Psychological treatments such as gut-directed hypnotherapy have been shown to improve bloating in IBS.

If diet changes and pharmacy medicines are not helping, see a doctor. You may need tests to find out what is driving your symptoms.

See a doctor if you:

• Feel bloated regularly, or the bloating does not go away
• Have bloating that happens often along with pelvic or tummy pain, feeling full quickly when you eat, or needing to pee more often or more urgently
• Have tried changing your diet but still feel bloated
• Have bloating with weight loss you cannot explain
• Have bloating along with blood in your stool

Ask for an urgent appointment the same day if you have bloating with:

• Vomiting, diarrhoea or constipation
• Tummy pain
• A high temperature, or you feel hot, cold or shivery
• A swelling or lump in your tummy
• An inability to pee, poo or pass wind
• A burning feeling in your chest from acid reflux travelling up towards your throat

Get emergency help if you have a swollen tummy along with any of these:

• Tummy pain that is severe and came on very suddenly
• Vomiting blood, or vomit that looks like coffee grounds
• Severe difficulty breathing — gasping, choking, or unable to get words out

In India, call 112 for emergency help, or 108 for an ambulance. Do not drive yourself to hospital.

This article is general information, not personal medical advice. Antispasmodic medicines for gut symptoms are prescription-only in India and cannot be bought without a valid doctor's prescription. Take any medicine only as your doctor advises.