Lung cancer patients may have rib pain for the following reasons: 1. It is possible that lung cancer has rib metastasis, which is clinically advanced. CT will often see rib destruction, and a whole-body bone scan is needed to check whether there is metastasis in other parts of the body. If the rib pain is severe, besides taking painkillers, you can also consider local radiotherapy for rib metastases, which can achieve pain relief, as well as systemic chemotherapy and infusion of bisphosphonate anti-metastatic drugs. 2. In addition to rib metastases, another cause of rib pain is that lung cancer may have directly invaded the ribs, which is clinically considered to be locally advanced. In addition to systemic chemotherapy, radiotherapy for localized tumors can also be considered.