Stage 1b squamous lung cancer should refer to stage 1b squamous cell carcinoma of the lung, which is likely to recur. Stage 1b belongs to early stage, that is, the tumor is located in lung tissue and has not yet metastasized. Early stage squamous cell carcinoma of the lung can be cured by thoracoscopic pneumonectomy or combined with adjuvant chemotherapy, but if the patient is still often in the environment polluted with carcinogenic substances or smoking after cure, etc, it is still possible to recur. Squamous cell carcinoma is a unique pathological type of non-small cell lung cancer. The causes that can lead to squamous cell carcinoma are still unclear, but there is evidence that it is related to factors such as smoking and environmental pollution. Therefore, it is recommended that squamous cell carcinoma patients should try to avoid the environment polluted with carcinogenic substances and quit smoking to prevent the disease from recurring after cure. And they should go to the hospital for regular checkups, so as to achieve early detection, early diagnosis and early treatment.