Inflammation of the lower lobe of the right lung is generally not important if the symptoms are mild and small in size, but it is important if the symptoms are severe and the inflammation is large in size. 1. Whether inflammation of the right lower lobe of the lung is serious or not needs to be analyzed according to the clinical symptoms, the size of the inflammation range suggested by imaging, age, and the presence or absence of underlying diseases or complications. 2. If the symptoms of inflammation of the lower lobe of the right lung are fever, cough, sputum, no dyspnea, chest CT or chest radiographs indicate that the inflammation is small in scope, and the patient is healthy and does not have high age, diabetes, heart disease and other underlying diseases, and there are no complications, then the pneumonia is not serious, and will be cured soon after active treatment. 3. If the inflammation of the lower lobe of the right lung appears dyspnea, cyanosis and other symptoms, imaging suggests that the scope of inflammation in the lungs is large, the age of the frail, or combined with diabetes mellitus, cardiac disease and other underlying diseases, or the emergence of comorbidities such as pus thorax, this time, the pneumonia will be serious, and if not treated in a timely manner can be a life-threatening situation at any time. Therefore, whether pneumonia is serious or not, it is necessary to be judged by a doctor to guide the treatment in a timely and correct manner.