Introduction Diarrhea is a common digestive symptom that most people experience occasionally, but when it becomes chronic—lasting for four weeks or longer—it can signal an underlying health issue that requires medical evaluation. Chronic diarrhea is defined as frequent loose or watery stools that persist beyond the typical course of a short-term infection. It can cause dehydration, nutrient deficiencies, weight loss, and fatigue, severely impacting quality of life. The causes of chronic diarrhea are diverse, ranging from functional disorders like Irritable Bowel Syndrome (IBS) to inflammatory diseases such as Inflammatory Bowel Disease (IBD), autoimmune conditions like Celiac Disease, lingering infections, and…