Bloated

Bloating
Classification and external resources
Specialty	Gastroenterology
ICD-9-CM	787.3
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Bloat is any abnormal gas swelling, or increase in diameter of the abdominal area. As a symptom, the patient feels a full and tight abdomen, which may cause abdominal pain and is sometimes accompanied by increased stomach growling, or more seriously, the total lack of it.

The most common symptom associated with bloating is a sensation that the abdomen is full or distended. Rarely, bloating may be painful or cause shortness of breath.

Pains that are due to bloating will feel sharp and cause the stomach to cramp. These pains may occur anywhere in the body and can change locations quickly. They are so painful that they are sometimes mistaken for heart pains when they develop on the upper left side of the chest. Pains on the right side are often confused with problems in the appendix or the gallbladder.

One symptom of gas that is not normally associated with it is the hiccup. Hiccups are harmless and will diminish on their own; they also help to release gas that is in the digestive tract before it moves down to the intestines and causes bloating. Important but uncommon causes of abdominal bloating include ascites and tumors.

There are many causes of bloating, including: diet, irritable bowel syndrome, lactose intolerance, reflux, and constipation.

Specific medical conditions like Crohn's disease or bowel obstruction can also contribute to the amount of stomach bloating experienced.

Common causes of abdominal bloating are:

Important but uncommon causes of abdominal bloating include:

In animals, causes of abdominal bloating include:

Bloating from irritable bowel syndrome (IBS) is of unknown origin but often results from an insult to the gut, and as such can overlap with infective diarrhea, celiac, and inflammatory bowel diseases (Crohn's disease and ulcerative colitis). IBS is a brain-gut dysfunction that causes visceral hypersensitivity and results in bloating in association with recurrent diarrhea (or constipation) and abdominal pain. While there is no direct treatment for the underlying pathology of IBS, the symptom of bloating can be well managed through dietary changes that prevent the over-reaction of the gastrocolic reflex. Having soluble fiber foods and supplements, substituting dairy with soy or rice products, being careful with fresh fruits and vegetables that are high in insoluble fiber, and eating regular small amounts can all help to lessen the symptoms of IBS (Van Vorous 2000). Foods and beverages to be avoided or minimized include red meat, oily, fatty and fried products, dairy (even when there is no lactose intolerance), solid chocolate, coffee (regular and decaffeinated), alcohol, carbonated beverages, especially those also containing sorbitol, and artificial sweeteners (Van Vorous 2000). IBS is most commonly found in patients around the age of 20 and is found more often in women than men. In people with IBS, the intestines squeeze too hard or not hard enough and cause food to move too quickly or too slowly through the intestines. Other terms used to describe this condition include spastic bowel, spastic colon, and irritable colon. Symptoms of the condition will worsen as a person is placed under stress, during travel, and at other times when the daily routine is tampered with. Common symptoms include bloating, constipation, abdominal cramp or pain after bowel movement, or feeling like a movement is required even after one has been completed.

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