What does barren woman mean? Why can't you get married and have children?

"barren woman", also known as "stone core" and "true woman", is generally used by the people to refer to women who are naturally unable to have sexual intercourse. The reason is generally because men can't enter the female reproductive organs normally. There are generally two kinds of barren women, namely the so-called "real stone (inner stone)" and "fake stone (outer stone)". True barren woman belongs to congenital absence or atresia of vagina, which refers to the hypoplasia or absence of vagina or uterus in reproductive organs; False barren woman belongs to hymen atresia (or hypertrophy) or vaginal diaphragm, which means that the reproductive organs such as vagina are well developed, and the penis cannot enter only because of abnormal vagina or hymen. The barren woman also has the general sexual characteristics, sexual desire and normal female psychological state.