This document discusses diarrhea, including its definition, symptoms, types, complications, treatments, and prevention. It defines diarrhea as the frequent passage of watery stool, often lasting a few days depending on the type. It lists symptoms like abdominal cramps, stomach pain, bloating, thirst, weight loss and fever. It describes acute diarrhea as lasting less than 4 weeks and chronic diarrhea as lasting longer than 4 weeks. Treatments discussed include pharmacological drugs, non-pharmacological methods, and natural sources. Prevention methods focus on hand washing, cleaning surfaces, avoiding unpasteurized foods and street foods.