一、癌症的发病与危害世界卫生组织（WHO）预测21世纪恶性肿瘤将成为人类的“第一杀手”，故癌症控制已成为全球性的卫生战略重点。我国虽是发展中国家，但疾病谱已发生转变，中国已成为世界第一癌症大国，癌症不仅严重威胁着我国人民的生命与健康，而且给家庭、社会、国家造成 First, the incidence and harm of cancer The World Health Organization (WHO) predicts that malignant tumors in the 21st century will become the “first killer” of humans, so cancer control has become the focus of global health strategies. Although China is a developing country, the spectrum of diseases has changed, and China has become the world’s largest cancer country. Cancer not only seriously threatens the lives and health of our people, but also causes it to families, societies and countries.