Diarrhea can be caused by a variety of factors, including infections, food intolerances, and medications. The most common cause of diarrhea is a viral infection that affects the gut, often referred to as the "stomach flu" or "intestinal flu." Other causes include bacterial and parasitic infections, food allergies, digestive tract problems, and long-term use of certain medicines such as antibiotics and anti-cancer drugs
. In some cases, diarrhea can be a symptom of more serious conditions, so it's important to consult a doctor if it persists for more than a few days or is accompanied by other concerning symptoms
