Mycobacterium tuberculosis infection causing pleural effusion should be treated with standardized anti-tuberculosis treatment; if the amount of effusion is large, it needs to be treated by thoracentesis and aspiration; if it is persistent, it can be treated by thoracoscopy. The details are as follows: 1. Anti-tuberculosis treatment: first of all, standardized anti-tuberculosis treatment should be carried out under the guidance of professional doctors to eliminate the pathogen Mycobacterium tuberculosis in the body and remove the disease from the root. 2. Thoracentesis and fluid extraction: if the pleural fluid is small, the chest can be self-absorbed; if the fluid is large, thoracentesis and fluid extraction can be chosen to reduce the pressure of the fluid on the lungs and alleviate respiratory difficulties. 3. Thoracoscopic treatment: If the anti-tuberculosis drug treatment is ineffective, or the onset of a longer period of time, repeated pleural effusion, thoracoscopic treatment can be carried out. Mycobacterium tuberculosis infection should be taken seriously, and go to a professional hospital for standardized treatment as soon as possible. So as not to delay the condition.