The success rate of right lower lung dorsal segment oblique fissure paracentesis is relatively high, usually above 80%, depending on the doctor’s skills, medical conditions, and the patient’s own conditions. Right lower lung dorsal segment oblique fissure paracentesis is a lung puncture, percutaneous puncture biopsy, from the thoracic surgery into the pleural cavity, the dirty layer of pleura penetration into the lungs, so as to diagnose the peripheral lesions of the lungs or diffuse lung disease, usually is the biopsy of the lung parenchyma, the success rate is very high. Lung puncture may damage localized peripheral nerves, and symptoms such as blood in sputum and hemoptysis may occur a few days after puncture, and pneumothorax, hemothorax, and pleural reactions may occur. After puncture, pay attention to rest, improve environmental hygiene, avoid dust, smoke and other irritating gases, and pay attention to keep warm. If there is any discomfort, consult a doctor promptly.