日本厚生省于1986年发表了日本人女性平均寿命是80.93岁,男性是75.23岁,已成为世界长寿国之一。但是老龄化社会的迅速出现带来了许多需要解决的困难问题。“长寿者的生育年龄是否有可能延长”就是其中的一个问题。本文仅就与生殖机能衰退及更年期有关问题叙述如下。生殖机能的衰退:更年期是指闭经前后的几年时间,就是从成熟期向老年期的过渡期。以母亲年龄生产率作为生殖机能的指标,从其逐年变化来看,最近虽有高龄化的趋势,但是与1950年比较,40岁以上高龄产妇明显减少。即使从申请人工流产数来看,20岁以下的年青妇女在增加,而40岁以上者未增加。从这里得不到年龄延长的根据。闭经是生殖机能的停止。现在闭经的平均年龄约为50岁,本教研室统计50%的闭经年龄是49.8岁,以此为中心呈对称性分布。也有闭经年龄上升的报道, Japan’s Ministry of Health and Welfare published in 1986 that the average life expectancy of Japanese women was 80.93 years and that of males was 75.23 years old. It has become one of the longevity countries in the world. However, the rapid emergence of an aging society has brought many difficult problems to be solved. “Longevity of the childbearing age is likely to extend” is one of the problems. This article describes only the issues related to the decline of reproductive function and menopause. Reproductive decline: Menopause refers to a few years before and after menopause, that is, from the mature period to the transitional period of old age. As the indicator of reproductive function, mother’s age productivity, from the year-by-year change, although the recent aging trend, but compared with 1950, the number of older women over the age of 40 significantly reduced. Even in terms of the number of induced abortions, young women under the age of 20 are increasing, while those over the age of 40 are not increasing. No basis for the extension of age is found here. Amenorrhea is a stop of reproductive function. Now the average age of amenorrhea is about 50 years old, the statistics of the Department of amenorrhea 50% of the age of 49.8 years old, as the center was symmetrical distribution. There are also reports of an age-related increase in menopause,