Whether a patient has neoconjunctivitis or not is not determined by dyspnea alone. Patients with neoconiosis mainly have a dry cough, fever and malaise as their manifestations, but for some critically ill patients with neoconiosis, dyspnea can occur and even be accompanied by clinical symptoms such as respiratory failure and impairment of other organ functions. Of course there are many causes of dyspnea, which should be specifically analyzed and the corresponding examination should be perfected. For those who have a recent epidemiological history of neo-crown, when the CT of the lung suggests the formation of viral pneumonia with symptoms of dyspnea, it is important to improve the testing of neo-crown virus nucleic acid and its specific antibodies in a timely manner. If the test is positive for neo-crown pathogenesis, the diagnosis of neo-crown pneumonia is confirmed. Dyspnea can be seen in other related diseases, such as pulmonary embolism, severe acute asthma attack, tension pneumothorax, acute heart failure, pulmonary edema, etc. Therefore, when dyspnea occurs, it is important to address the cause and treat it accordingly.