Feeling breathless and suffocating may be caused by a novel coronavirus infection, which causes novel coronaviral pneumonia. Because the clinical symptoms of novel coronavirus pneumonia are not obvious in the early stage, patients may have symptoms such as nasal congestion, runny nose, sore throat, headache, etc. Some may also have dyspnea and suffocation. As the disease progresses, patients gradually develop respiratory symptoms such as fever, dry cough, dyspnea, etc. Patients with aggravated disease may develop hypoxia, shortness of breath or even respiratory failure. There is no effective clinical treatment for novel coronavirus pneumonia, and the diagnosis is confirmed clinically by testing the patient’s viral nucleic acid for pathogenesis. Some patients with digestive system diseases, such as reflux esophagitis, and cardiac system diseases, such as coronary heart disease with cardiac insufficiency, can also present with dyspnea and suffocation. Therefore, it is important to take the patient’s medical history carefully and then give a comprehensive judgment for treatment.