Pneumonia only back pain may be caused by prolonged violent coughing leading to irritation of the diaphragm and pleura, and may also be caused by the accumulation of fluid in the chest cavity. Pneumonia back pain may be caused by prolonged and severe coughing, resulting in irritation of the diaphragm and pleura, causing chest and back pain, and chest and back pain worsened by coughing, which can be treated under the guidance of the doctor with anti-infective, cough suppressant, and phlegm dissolving treatment. Pneumonia only back pain may be caused by fluid in the chest cavity, which is caused by the exudation of pneumonia leading to the formation of pleural fluid, there will be cough, cough mucus sputum, back pain and other symptoms, can be treated by thoracentesis. Pneumonia only back pain may also be pneumonia inflammation area close to the back pleura, inflammation stimulation, causing back pain, should go to the hospital as soon as possible to clarify the cause of the disease, under the guidance of the doctor for standardized treatment.