Heatstroke may lead to diarrhea, because heatstroke may lead to electrolyte disorders in the body, gastrointestinal dysfunction, resulting in diarrhea. Heatstroke is due to prolonged exposure to high temperature environment, body heat dissipation poor, a lot of sweating, blood volume is insufficient, blood pressure drops, gastrointestinal blood supply is insufficient, at the same time, the loss of potassium ions, sodium ions in the body lead to electrolyte disorders, and gastrointestinal dysfunction, diarrhea will occur. In summary, heatstroke can lead to diarrhea. After heatstroke, must be timely out of the current environment, if there is a diarrhea, should promptly seek medical attention, under the guidance of the doctor to replenish electrolytes, supplemental water, proper rest, to avoid adverse events.