It is true that a small proportion of patients with novel coronavirus pneumonia have diarrhea and runny nose, but the main symptoms are fever, cough and malaise, and a small proportion have nasal congestion, runny nose, sore throat and diarrhea. Many mild cases of novel coronavirus pneumonia are not particularly typical, and some patients do not have fever at all, and only show mild nausea, malaise, poor mental health, nausea, vomiting, diarrhea, headache, heartburn, chest tightness, conjunctivitis, and mild limb or lower back muscle aches and pains. In addition to clinical symptoms, the diagnosis of novel coronavirus pneumonia should be combined with the novel coronavirus, epidemiologic history, and the two officially recommended diagnostic indicators of nucleic acid testing and gene sequencing. The popularity of nucleic acid testing is very high nowadays, so that some patients with novel coronavirus infections have been diagnosed with clinical symptoms that are not severe or atypical.