Cancer&cancer pain In recent years,cancer has become a common and frequently occurring disease,posing a serious threat to human health and life. According to the China Yearbook of Oncology 2012,recently released by the National Center for Cancer Registries,the nation has about 3.12 million new cancer cases per year,suggesting that nationwide an average of 8550 persons each day and six people per minute are diagnosed with malignant tumors. Cancer & cancer pain In recent years, cancer has become a common and frequently occurring disease, posing a serious threat to human health and life. According to the China Yearbook of Oncology 2012, recently released by the National Center for Cancer Registries, the nation has about 3.12 suggesting that the nationwide an average of 8550 persons each day and six people per minute are diagnosed with malignant tumors.