Increased rib density is generally not related to cancer. If there is cancer, it is most likely to be a decrease in rib density or bone destruction, which is common in cancers in other parts of the body, such as lung cancer or breast cancer with metastasis to the rib cage. In contrast, increased bone density is most often seen in osteophytes or bone islands, which are not related to cancer. In addition, even benign bone tumors, such as bone cysts and giant cell tumor of bone, which cause rib lesions, only reduce bone density and do not cause increased density. If the change in rib density is caused by cancer, there will be very obvious pain at the site of the lesion, but in the case of increased density there is no specific pain at the site of the lesion.