Infectious diarrhea is a common summer disease, mostly caused by direct invasion of the gastrointestinal mucosa by pathogens, and is generally difficult to cure on its own. If the patient’s symptoms are mild and his or her immune system is good, his or her symptoms can generally recover on their own in a short period of time through rest or diet adjustment. On the other hand, if the patient’s condition is serious and his or her health is poor, some of the pathogenic bacteria are more virulent and can lead to a state of shock and even life-threatening. Therefore, it is recommended to go to the hospital in a timely manner to seek treatment for infectious diarrhea and give correct and reasonable treatment measures according to the condition to avoid delaying the treatment and causing unnecessary adverse consequences.