Multiple dense nodular shadows in both lungs may be related to lung cancer, tuberculosis and other diseases, which are mainly treated by drugs and surgery. Chest X-ray of lung cancer may show multiple high-density nodular shadows in both lungs, but in chest CT, the nodules appear as spiny and lobular signs of different sizes. Common treatment drugs include gemcitabine, paclitaxel, pemetrexed and so on. They are mainly used to inhibit the growth of cancer cells. Surgical methods include lobectomy, partial lung resection, bronchoplasty pneumonectomy, etc. plus lymph node dissection and radiofrequency ablation. Chest X-ray of pulmonary tuberculosis shows multiple high-density shadows with uneven density and clearer edges. Common therapeutic drugs include isoniazid, rifampicin, pyrazinamide, ethambutol, etc., which are mainly used for anti-tuberculosis mycobacteria treatment. Surgical modalities include pneumonectomy and thoracoplasty. If you find multiple high-density nodular shadows in both lungs, you should seek medical treatment in time and under the guidance of your doctor. Pay attention to rest on weekdays, quit smoking and drinking, and keep a regular routine.