Holding in gas for too long negatively affects the intestine’s contraction and motility.
2.2. Some Gas May Be Absorbed into the Bloodstream
A portion of the excess gas can be absorbed through the intestinal wall into the bloodstream and expelled via the lungs when you exhale. However, this amount is very small and usually harmless.
2.3. G.as May Move Upwards to the Stomach
Sometimes, gas may travel backward to the stomach instead of moving downwards. This can cause burping, heartburn, or discomfort in the esophagus.