Patients with tuberculous pleurisy usually need to improve the corresponding examination to clarify their diagnosis, which usually requires routine blood tests, blood sedimentation, tuberculosis antibodies, especially blood T-SPOT tests, and when the blood T-SPOT test is positive, it suggests that the patient may be combined with tuberculosis infection. For patients with pleural effusion, early thoracentesis and drainage should be performed. The pleural fluid of patients with tuberculous pleurisy is mostly exudate with significantly increased cell count, mainly lymphocyte count, and the ADA of pleural fluid, i.e. adenosine deaminase, is more than 45 U/L. The T-SPOT examination of their pleural fluid may also be positive. When the above tests are positive, the possibility of tuberculous pleurisy is considered, and the diagnosis usually requires a biopsy of the pleura, and when tuberculous necrotic granuloma formation is seen on the pleura, the diagnosis of tuberculous pleurisy is confirmed.