As cancer cells are spreading throughout the body system pain also increases. When bone is affected intensely by the cancer spreading into it, the patient suffers more with pain. Bone metastases are the medical term used when cancer cells are penetrating to the bones. There are already remedies and options for treating the condition of the patient in this stage. Often narcotic pain medicines and other class of drugs are used to help support bone and slow the development of bone metastases. Bone metastases are common to people with breast, lung and prostate cancer. It usually causes pain and can lead to some other symptoms like hypercalcemia in which level of calcium abnormally increases.