Diarrhea is one of the symptoms of novel coronavirus infection, but this symptom does not have any characteristic and is not diagnostic. The novel coronavirus infection mainly causes respiratory symptoms, mainly including fever, malaise, dry cough, lack of energy, loss of appetite, nasal congestion and runny nose. However, the above symptoms are very similar to those caused by other viruses, so the diagnosis cannot be confirmed by symptoms alone. People with a clear history of exposure who develop mild diarrhea are not recommended to go to a fever clinic immediately, but can isolate themselves at home and ensure balanced daily nutrition. If symptoms do not improve and fever, malaise, and dyspnea gradually appear, prompt consultation at a local fever clinic and pathogenic testing should be performed to confirm the diagnosis.