“老年”的标准,严格讲应测定组织和器官的老化程度来判定,但现在仍有困难。故各国、各地区均以人口平均寿命中高龄组来划分老年,标准不一。日本多数意见及资料均以70岁以上为老年。本文沿用此一简单概念。老年人癌症死亡率占各年龄组癌症的首位,并逐年有增高。治疗上则远难使人满意。因此老年癌已成为老年病学研究中的迫切课题。老年致癌因素人的老化与相应发生的细胞癌变这一生物 The “elderly” standard, strictly speaking, should determine the degree of aging of tissues and organs, but there are still difficulties. Therefore, all countries and regions are divided into old age groups with average life expectancy, and the standards vary. Most opinions and data in Japan are older than 70 years old. This article follows this simple concept. The cancer mortality of the elderly accounts for the first place among cancers of all ages, and has increased year by year. Treatment is far more difficult to satisfy. Therefore, elderly cancer has become an urgent issue in the study of geriatrics. Aging causes human aging and the corresponding cell cancer