Nodules with high density and clear margins are generally not serious, but critical tumors or early malignant tumors cannot be ruled out completely. It is recommended to have regular review to observe the status of the nodules, and to take timely interventions for treatment when abnormal changes occur. Nodules with high density and clear margins are generally regarded as benign lesions, and if there are no obvious symptoms, only regular chest CT examination is needed to observe the changes in the condition, and there is no need for special treatment. However, it should be noted that if the patient’s nodules have obvious enlargement or abnormal changes such as rough edges, then it is necessary to perform bronchoscopy or CT-guided lung puncture examination in a timely manner to clarify the possibility of tumors, and if it is clearly identified as a tumor, it is necessary to give timely intervention measures such as surgery or radiotherapy or chemotherapy to avoid delaying the condition and aggravating the symptoms, which will lead to a serious impact. If you feel unwell, you should go to the hospital in time and consult your physician.