Dysentery is an acute intestinal infection caused by the bacillus dysenteriae. Diarrhea is one of its main symptoms. Diarrhea is simply an increase in stool moisture and number of times. The difference is as follows: 1, diarrhea has many causes such as infection, indigestion, unclean food, lesions of the intestinal mucosa itself, etc. The cause of dysentery is very clear for the infection of Bacillus dysenteriae. 2, diarrhea can occur at any age, and dysentery is more common in preschool children and young adults. Seventy percent of the patients and 60% of the deaths of those infected with Bacillus dysenteriae are children under 5 years of age. 3, diarrhea is generally not contagious, dysentery is contagious. 4, the symptoms are different: diarrhea is the number of stools and water increased. The symptoms of dysentery are: chills, chills, high fever with headache, fatigue, diarrhea first more dilute watery stool, then turn to mucus-purulent blood stool, longer duration, the urgency, with hyperactive bowel sounds, left lower abdominal pressure pain. 5, treatment methods are also different: diarrhea treatment to determine the cause of the disease, in the treatment. Dysentery with a clear cause can be treated with etiology, antibacterial therapy and symptomatic treatment. The cause of dysentery is clear, the symptoms are typical, and treatment can be based on the cause generally has a good prognosis. Diarrhea, on the other hand, requires various tests to investigate the cause of the disease and then treat it according to the cause. There is a clear difference between the two, as diarrhea can be caused by dysentery, while diarrhea can also occur when you have dysentery.