Alternative names
Aerophagia, excessive gas, flatulence or “farts”.
Flatus
(flatulence) is air or gas in the intestine that is released through the
rectum. This gas consists mainly of the odourless gas carbon dioxide. Small amounts
of other gases are present, such as methane and hydrogen sulphide. The
unpleasant smell of intestinal gas is a result of the hydrogen sulphide or
other compounds. These other compounds are mostly amines, which are produced
when proteins are broken down in the colon. The amines can be particularly
offensive.
When
bacteria begin to break down undigested food in the large intestine or colon,
gas is formed. This causes the intestine to distend (swell), which can cause
cramping pain. If the intestinal wall is inflamed, it can become more sensitive
than usual to normal amounts of flatus.
Even
though it can cause discomfort, excessive gas is usually not a serious symptom.
There
are many causes of flatus and they may vary depending on your age, gender, and
associated complaints. Some of the more common causes include:
- Eating non-digestible foods such as
fibre.
- Eating foods that your body cannot
tolerate (as in lactose intolerance which occurs when you lack the enzyme
which digests lactose or milk sugar).
- Eating beans. There are carbohydrates
in beans that cannot be digested by our enzymes so the bacteria in the
colon have to break it down. The result is colonic gas.
- Acute pancreatitis.
- Irritable bowel syndrome.
- Malabsorption (which occurs when your intestine
is not able to absorb nutrients) often accompanied by diarrhoea.
- Use of antibiotics.
Anyone
can get flatus. Fibre is the main cause of flatus and since fibre is necessary
in a healthy diet, flatus can be seen as a sign of good health! It has been
estimated the average healthy young male passes excess gas thirteen times a day.
Diagnosis
If
flatus is one of several symptoms, your doctor might need to consider the
possibility of illnesses such as inflammatory bowel disease. In this case, your
doctor will probably ask questions about your medical history, such as what
your eating habits are like and whether you experience any other symptoms, such
as diarrhoea, abdominal pain or bloating.
Diagnostic
tests that may be performed to rule out serious problems include:
- Barium swallow X-ray
- Barium enema X-ray
- Blood test
- Cholecystogram or gallbladder X-ray
- Sigmoidoscopy or proctoscopy
Intestinal
gas may increase temporarily after starting a high-fibre diet. The condition
usually disappears on its own once your body has adjusted to the new diet. Also
try the following:
- Do not eat milk products for a week as
you might be lactose-intolerant. Avoiding rich foods, fizzy drinks and
beer.
- To decrease the presence of foul-smelling
amines in the intestine, you could decrease the amount of protein,
primarily meat, in your diet. However, it is advisable to see a
nutritionist before doing this.
- Avoid foods like navy beans, cabbage,
brussel sprouts, cauliflower, broccoli, turnips, cucumbers, radishes,
onions, and melons.
- Eat slowly and chew your food
thoroughly.
- Increase your intake of chlorophyll. Chlorophyll is found in leafy green vegetables, such as spinach.
See your
doctor if you have excessive flatus or if it is accompanied by pain.
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