After 20 years of tuberculous pleurisy, nodules usually do not form, but only involve the pleura, resulting in pleural effusion or pleural adhesions. Tuberculous pleurisy is a series of inflammations of the pleura caused by the entry of Mycobacterium tuberculosis and its products into the pleural cavity. It is an extrapulmonary form of tuberculosis, and may cause localized symptoms such as chest pain, dry cough, and dyspnea, but pleurisy does not usually involve the lungs and cause nodules to form. Tuberculous pleurisy may produce pleural effusion or pleural adhesions, and may thicken the pleura, affecting the patient’s respiratory and circulatory function, but usually rarely involves the lungs.