Mixed density nodules in the apical segment of the upper lobe of the right lung need to be clarified before considering treatment, which includes surgery, medication, and regular follow-up. Generally, benign nodules do not require surgical treatment, and symptomatic treatment is sufficient to address the cause of nodule formation. For example, anti-infective treatment for inflammatory nodules, such as cefuroxime, levofloxacin, etc.; anti-tuberculosis treatment for tuberculosis nodules, such as isoniazid, rifampicin, etc., and long-term stabilization of old nodules can be observed and followed up for the time being. Nodules with mixed density in the apical segment of the right upper lobe of the lung may also be malignant nodules. If the patient has long-term cough, sputum, blood in sputum, short-term emaciation, chest CT suggests that the nodule is lobulated, edge burr, pulling pleura, or puncture biopsy confirms that the nodule is malignant, it is necessary to undergo surgery as soon as possible, and chemotherapy and targeted therapy may be needed after the surgery. The presence of mixed density nodules in the apical segment of the upper lobe of the right lung requires active consultation, early clarification of the cause of the disease, and reasonable treatment in accordance with medical advice.