Chest pain due to pneumonia may be due to localized inflammatory infiltration, or in combination with pleurisy. Chest pain may occur due to localized infiltration caused by pneumonia, which is most often seen in inflammation of the lungs and is especially noticeable with deep breathing or coughing. Pneumonia that is combined with pleurisy or pleural effusion may cause chest pain that is more pronounced with deep breathing or coughing. In addition to chest pain, patients with pneumonia may also have fever, chills, malaise, cough and sputum. If pneumonia is identified, targeted treatment should be carried out as soon as possible to identify the pathogen and prevent the disease from prolonging and causing other adverse consequences.