The clinical relationship between diarrhea and novel coronavirus pneumonia is not very close. If there is no positive correlation between diarrhea symptoms and the history of exposure to novel coronavirus pneumonia, the diagnosis of novel coronavirus pneumonia cannot be confirmed. The main clinical manifestations of novel coronavirus pneumonia are some related manifestations of pneumonia, such as fever and lung CT with large white lung changes of novel coronavirus pneumonia, so clinically there is little relationship between diarrhea and novel coronavirus pneumonia.