What we often refer to as lung pain is actually a symptom of chest pain. There are many causes of chest pain. The most common reason for the appearance of chest pain on one side is the presence of pleural effusion; for the appearance of right lung pain, the most common reason is tuberculous pleurisy. There are 5 types of causes of pleural effusion, i. tuberculous pleurisy; ii. pleural effusion caused by heart failure; iii. pleural effusion caused by low protein; iv. immune system diseases; v. malignant pleural effusion. If you have right-sided lung pain, you should first clarify whether there is pleural effusion, you can first do ultrasound of the chest cavity, and after finding pleural effusion, you can do thoracentesis, and after extracting the effusion, do laboratory tests to initially determine whether it is exudate or leaky fluid, if it is exudate, generally consider tuberculous pleurisy, malignant pleural effusion; if it is leaky fluid, consider heart failure, hypoproteinemia, immune system diseases resulting in pleural effusion. effusion. Continue to do relevant auxiliary examinations to clarify the specific causes, and then treat the symptoms, which are generally well absorbed. If the pleural effusion is found late, it may be absorbed by itself and lead to pleural thickening. Comprehensive analysis shows that there are many kinds of diseases causing pulmonary pain, which need to be carefully identified clinically. Specifically for right-sided lung pain, we can start with common diseases, which can lead to an early diagnosis of the cause and get timely treatment.