Abdominal fullness or bloating occurs when excess gas builds up in the digestive tract.
Common causes of gas include:
- Swallowed air. If swallowed air is not burped up, it passes through the digestive tract and is released through the anus as gas (flatus). Excessive air swallowing may cause hiccups.
- Gas-producing foods and drinks, such as beans, broccoli, carbonated drinks, and beer. The amount of gas that different foods cause varies from person to person.
- Constipation. This can cause bloating but generally does not increase gas.
- The side effects of medicines or supplements, such as narcotic pain medications, vitamins, iron supplements, and many medications that are used to treat constipation.
- Changing hormone levels. Many women feel bloated right before their periods because their bodies retain fluid.
- Weakened abdominal muscles caused by pregnancy or abdominal surgery.
Treatment depends on what is causing the problem. Call your doctor for a checkup if you have abdominal fullness or bloating that has not gotten better or gone away with home treatment.