The causes of right-sided cardiopulmonary discomfort include pulmonary embolism, lung cancer, pleural effusion, pneumothorax, etc. Treatment includes medication and surgery. 1. Pulmonary embolism: when various factors cause embolism to block the pulmonary artery, the right side of the heart and lungs can be uncomfortable, and low molecular weight heparin and other drugs can be given to anticoagulant treatment. 2. Lung cancer: if various factors lead to massive proliferation of tumor cells, surgical treatment such as radical lung cancer surgery can be given at this time. 3. Pleural effusion: if the formation of fluid in pleural cavity increases due to various factors, and this fluid compresses the heart and lungs, leading to discomfort of heart and lungs, at this time, it can be treated by thoracentesis and fluid extraction. 4. Pneumothorax: because of various factors lead to gas into the pleural cavity, gas pressure on the heart and lungs triggered cardiopulmonary discomfort, at this time can be given thoracentesis aspiration to treatment. Finally, if you feel uncomfortable on the right side of your heart and lungs, please consult a doctor in time and follow the doctor’s instructions for all the above treatments.