Compared to this, modern people have relatively better nutrition and mature faster, working women marry later, and there has been a great decrease in frequency of births, so that the number of periods in a lifetime correspondingly increases, so it is not strange that the number of people afflicted with endometriosis increases greatly.
相對的，現代人營養好、較早熟，職業婦女又晚婚，生育次數更是大減，一生中月經來潮次數相形增加，子宮內膜異位患者增多也就不足為奇了。