Too hot is mainly caused by high temperature, this time diarrhea may be due to living habits, diet, infection and other factors. 1. Lifestyle habits: when the temperature is high, people usually blowing fans or open air conditioning, this time if the abdomen is cold, it may stimulate gastrointestinal peristalsis accelerated, resulting in diarrhea. 2. Diet: people usually like to eat barbecue, drink cold drinks and so on when it is hotter, these cold and greasy food will stimulate the gastrointestinal tract and increase the burden on the gastrointestinal tract, which will lead to diarrhea. 3. Infection: When the temperature is high, vegetables, fruits and other foods are more likely to rot and spoil, if you eat overnight food, it may cause acute gastroenteritis, resulting in diarrhea. In addition, high temperatures can also cause loss of body fluids, decreased sleep quality, and even heat stroke, leading to weakened gastrointestinal function, which will also be prone to diarrhea. If the patient has diarrhea when the temperature is high and cannot be relieved, it is recommended to consult a doctor in time and receive treatment actively so as not to delay the condition.