Suffering from lung cancer with right lower rib pain may be caused by bone metastasis and tumor invasion, which need to be further differentiated and diagnosed by doctor. 1. Bone metastasis: In the advanced stage of lung cancer, as the disease progresses, cancer cells can be transferred to the right lower rib through bloodstream, which will cause local pain symptoms. 2. Tumor invasion: if the cancer cells directly invade into the pleura of the right lower rib cage, it can also pull the rib cage and cause pain in the right lower rib cage. It is suggested that patients should go to regular hospitals for consultation in time, make clear diagnosis and carry out standardized treatment under the guidance of doctors, so as to avoid delaying the condition and bringing adverse effects to the body.