It can be acute, chronic, or both. often results from the pain of the tumor causing pressure against the nerves or organs, or tissues. It could be related to hypoxia or blockage of blood supply to the organ. Metastasis -pathologic fractures, adverse reaction to therapy. muscles spasms. The adverse reactions are such as radiation therapy, chemotherapy. It is complex pain. This is known as?
a. Cancer pain.
b. Ribs.