Probably the most common IBS symptom people experience is diarrhea. Diarrhea is loose or watery stools, often accompanied by cramping & gas. Most people are familiar with diarrhea as practically everyone has probably experienced it at some point in their life.The difference for those with diarrhea predominate IBS is that diarrhea is a chronic, usually daily, symptom.

Those with diarrhea predominate IBS may find that their symptoms are worse during a specific time of day such as in the morning, afternoon or evening. Additionally symptoms may show up after eating a meal due to the gastrocolic reflex. The gastrocolic reflex is essentially your digestive system kicking into gear to make room for the food you just ate. Diarrhea immediately after eating may also be a sign of Gastric Dumping Syndrome, which occurs when the stomach empties too quickly.

Diarrhea is usually moister or softer than regular stool. It can range range between small stools, mushy stools or watery liquid stools. Some people may also experience a clear watery diarrhea, which is often mucus being released by the lower bowel. Mucus discharge may be due to irritation, which is likely to happen if your digestive system is unhappy causing you to use the restroom often.

Treatment of IBS diarrhea may involve fiber, anti-diarrheal medication, calcium or mint.