Stone girl is the common name for congenital absence of vagina, which is caused by bilateral hypoplasia of the paramedian tubules during embryonic development, and is basically combined with congenital absence of the uterus, with primary amenorrhea occurring after puberty, and difficulty in sexual intercourse after marriage. The diagnosis of congenital absence of vagina requires an ultrasound to find out if there is a uterine adnexa, as well as hormonal tests to see if there is ovarian sex hormone secretion, and chromosomal tests to rule out chromosomal abnormalities, if necessary. For patients with congenital anovulation who are ready to have sex, surgical treatment can be adopted, and the surgical methods include sigmoid colon substitution of vagina, amniotic membrane or pelvic peritoneoplasty, etc. Generally speaking, normal sex life can be satisfied after the surgery, but because of the lack of uterus or ovary dysfunction, there will be no pregnancy after marriage.