Heat diarrhea may be caused by heat stroke, poor eating habits, acute gastroenteritis and other factors. 1. Heatstroke: Heatstroke is due to the body temperature regulation caused by the body electrolyte disorders, which may lead to diarrhea, abdominal pain and other gastrointestinal symptoms. 2. Improper diet: many people like to eat cold food or drink cold drinks when it is hot, when the gastrointestinal tract is stimulated by cold peristalsis accelerated, diarrhea may occur. 3. Acute gastroenteritis: food in the hot weather is prone to bacterial growth or deterioration, once eating contaminated or spoiled food may cause acute gastroenteritis, resulting in abdominal pain, diarrhea, stools in dilute watery or pasty symptoms. There may be other reasons for diarrhea in hot weather, if the above symptoms occur, it is recommended to go to the hospital in time for early and regular treatment.