When a patient has bad lungs, they can suffer from coughing and inflammatory irritation caused by lung infections that lead to body pain, as well as lung cancer and other causes of body pain and other uncomfortable symptoms. When there is discomfort in the lungs, you need to go to the hospital for further examination and treatment under the guidance of the doctor. 1. Lung infection: Generally lung diseases are caused by infection. It mainly manifests itself in obvious symptoms such as coughing up phlegm, difficulty in breathing and shortness of breath. When coughing violently, or irritated by inflammatory factors, it will cause chest pain and physical discomfort. 2. Lung cancer: Due to local invasion of tumor, patients with lung cancer and extrapulmonary metastasis may have chest pain on the side of the lesion, or symptoms of pain in other parts of the body. Patients with bad lungs who have stubborn pain need to go to the hospital in time to get a clear diagnosis and treatment plan, use drugs under the guidance of doctors and avoid self-medication.