Diarrhea, or diarrhea, is often characterized by an increase in the volume and frequency of bowel movements and unformed stools, mostly accompanied by abdominal pain and bloating. There are many causes of diarrhea, including cold and viral infections, and there are certain differences between the two in terms of symptoms, laboratory tests and treatment. 1. Diarrhea caused by viral infections occurs in infants and young children, with a high incidence in autumn, in addition to watery stools or egg-flake soup-like stools, accompanied by fishy-smelling, yellowish-green stools, etc. The duration of the disease is slightly longer, more than 1 day, and may be accompanied by fever, nausea, vomiting and other symptoms; 2. For diarrhea caused by cold, there is no presence of white blood cells in the stool; for diarrhea caused by viral infection, the results of routine stool examination show the presence of white blood cells, pathogens can also be detected, and the blood routine indicates elevated lymphocytes, and there can also be water-electrolyte disorders such as dehydration and hypochlorhydria; 3. diarrhea, usually need to be treated, under the guidance of the doctor to use ribavirin, montelukast and other drugs, and easy to cause water-electrolyte disorders, the need for timely replenishment of water and salt; 4, the course of disease: diarrhea course varies according to individual differences, diarrhea caused by cold is usually mild symptoms, the course of the disease is short, even if not taking drugs 2-3 days can be cured, if the medical treatment can sometimes recover in a day; virus-induced Diarrhea caused by viruses takes about 3-7 days to heal after treatment.