Diarrhea in child can occur due to many common as well as serious medical reasons depending on age, lifestyle, existing health conditions, and recent activities. In many cases, it may be temporary and improve with rest, hydration, and basic treatment. However, if diarrhea in child is severe, persistent, or associated with warning signs like high fever, breathlessness, severe pain, fainting, or bleeding, it is important to consult a qualified doctor immediately for proper examination and diagnosis. Early medical advice helps prevent complications and ensures safe recovery.