Loose watery bowel (diarrhea) is commonly caused by infections (viral, bacterial, or parasitic), contaminated food or water, food intolerance, stress, or digestive disorders. Symptoms include frequent loose stools, dehydration, cramps, and weakness. Treatment focuses on rehydration using oral rehydration salts, light diet (rice, bananas, toast), and avoiding dairy or spicy foods. In parasitic or certain bacterial infections, medications like nizonide 500mg may be prescribed. Probiotics can help restore gut flora. Seek medical care if symptoms persist beyond two days, worsen, or include fever, blood in stool, or severe dehydration, especially in children or elderly individuals.