Children have diarrhea all the time, can be caused by improper diet, climatic factors, infection and other reasons, it is recommended to consult a doctor in time. 1. Improper diet: such as improper feeding, consumption of allergic foods, excessive consumption of spicy and stimulating foods, etc., can trigger a transient diarrhea, the general symptoms can be relieved after rest. 2. Climatic factors: such as a sudden drop in temperature, triggering the abdomen to be cold, so that the gastrointestinal peristalsis increases, or the weather is too hot can make the digestive function disorders, thus triggering diarrhea. 3. Infections: including various pathogenic bacteria in the intestinal tract, such as viruses (rotavirus, etc.), bacteria (Escherichia coli, Campylobacter jejuni, etc.), fungi (Candida, Aspergillus, etc.), parasites (amoeba, etc.), etc., the release of toxins, and other reasons for the emergence of diarrhea symptoms. Children with diarrhea symptoms that do not resolve or are accompanied by other discomforts should seek medical attention to identify the cause of the illness under the guidance of a doctor and, if necessary, be treated accordingly.