加拿大的一个调查小组经过16年的调查证实,36岁以上的女性不孕的主要原因系输卵管异常而不是卵巢功能障碍.这个年龄段的女性不孕者约有33%,自然流产率高达31%,所以主张对40岁以上的女性没有必要作输卵管修复手术.作者对1～19年内未妊娠的93对夫妇作了调查,将女性分成两组,第一组为36～40岁共75人,第二组为40～48岁共18人,对其作了精液分析、基础体温测定、子宫内膜活检、子宫输卵管造影以及Rulin氏试验.结果表明,第一组中不孕的最主要 A 16-year investigation by a Canadian survey team confirmed that the main cause of infertility in women over the age of 36 was tubal abnormalities rather than ovarian dysfunction, with about 33% of female infertility in this age group and a spontaneous abortion rate of 31% , So advocates for women over the age of 40 tubal repair surgery is not necessary.The author of 1 to 19 years of 93 unmarried couples surveyed, the women were divided into two groups, the first group of 36 to 40 years old a total of 75 people, The second group of 18 to 40 years old, a total of 18 people, made a semen analysis, basal body temperature determination, endometrial biopsy, hysterosalpingography and Rulin’s test.The results showed that the first group of infertility in the most important