Diarrhea is a common symptom that is characterized by loose, watery stools. It typically develops over 2 to 14 days and may be accompanied by abdominal cramps, bloating, nausea, fever, and dehydration. It can be caused by a variety of conditions, including food poisoning, infection, and certain medications. Diarrhea can range from mild to severe, with severe cases causing dehydration, electrolyte imbalances, and weight loss. Treatment may include dietary modifications, over-the-counter medications, and antibiotics.