A fan blowing against your stomach may or may not cause diarrhea.
Fans can blow the wind in a fixed direction continuously, if the fan is blown against the stomach for a long time, and there is no clothing or bedding to cover the stomach, it is possible to cause diarrhea, which is common in the summer.
Fan wind blowing on the stomach, will accelerate the evaporation of sweat on the stomach, the evaporation process will take away part of the body’s heat, resulting in low local temperature, if blowing for a long time, it may make the stomach cold, diarrhea and other symptoms.
But if the blowing time is short or stomach covered with bedding, the fan blowing out the wind may not cause too much impact, so there is also a part of the people may not have diarrhea. If you have recurrent diarrhea, it is recommended that you go to the hospital in a timely manner.