Inflammation of the lower lobe of the right lung can be caused by a variety of diseases, such as tuberculosis, bronchiectasis, and lung tumors. 1. Inflammation of the lower lobe of the right lung caused by tuberculosis requires sputum examination for bacillus antacidus and T-cell examination for tuberculosis infection to make a definite diagnosis. Tuberculosis needs to take a combination of multiple drugs rule medication. 2. Bronchiectasis with infection can also lead to inflammation of the lower lobe of the right lung, requiring chest CT and sputum culture. Imaging shows cystic dilatation. 3. Inflammation of the lower lobe of the right lung caused by a lung tumor requires fiberoptic bronchoscopy to look for neoplastic organisms. If imaging suggests inflammation of the lower lobe of the right lung, it is necessary to make a diagnosis based on the relevant auxiliary examinations to clarify the cause of the disease, so as to provide symptomatic treatment and reduce the adverse effects of the disease.