Grayish-white new organisms in the lungs may be associated with tuberculosis and lung tumors, and a definitive diagnosis is needed to choose the appropriate treatment. Tuberculosis is an infectious disease of the respiratory system caused by Mycobacterium tuberculosis infection. Most of its lesion CT shows grayish-white shadow with patchy, cloudy or flocculent distribution. Common therapeutic drugs include isoniazid, rifampicin, pyrazinamide, and ethambutol. Common surgical procedures include lobectomy and sentinel lesion removal. If it is a benign tumor, it can be treated by televised thoracoscopic surgery. Early symptom of malignant tumor in lung is coughing, with the development of the disease, it will lead to chest pain as well as worsening of coughing, etc. In serious cases, it will cause dyspnea as well as hemoptysis, if it is malignant tumor, it can be treated by chemotherapy, and the medicines used are Paclitaxel injection, Cisplatin injection, etc. If you find grayish-white new organisms in the lungs, you should consult a doctor in time and treat them under the doctor’s guidance, do not use drugs without authorization, so as not to delay the condition.