Nodular shadows in the soft tissue of the right lower lung with short burrs at the edges may be caused by pneumonia, lung cancer, pulmonary hemangioma and other diseases. 1. Pneumonia: soft tissue nodular shadow in the right lower lung with short burr seen at the edge may be caused by pneumonia, which is usually due to bacterial infection or decreased immunity, etc. Fever, coughing up sputum and coughing up phlegm may occur. 2. Lung cancer: the cause is unknown, related to smoking, environmental pollution, cooking fumes, dietary habits, genetic factors, and may have symptoms such as coughing, coughing up sputum, blood in sputum, etc. Patients usually find soft tissue nodules on the right lower lung, with short burrs on the edge when they do the imaging examination. 3. Pulmonary hemangioma: due to the abnormal development of blood vessels, there are often no clinical symptoms, and it is mostly found during physical examination, and the hemangioma mass may present nodular shadow with short burr at the edge under imaging. The examination found that the right lower lung soft tissue nodular shadow, the edge of the segmental burr, suggest that the patient go to the hospital in time, under the guidance of the doctor for reasonable treatment.