Obstetrics and gynecology are divided into two main areas: gynecological and obstetrical diseases, gynecological inflammation, cervical diseases, ovarian diseases, infertility and menstrual abnormalities. Obstetrical diseases mainly focus on gestational diseases, delivery problems, placental problems, etc. Gynecological diseases 1. gynecological inflammation: vaginitis, pelvic inflammatory disease, etc.; 2. cervical diseases: cervicitis, endometritis, cervical cysts, cervical cancer, cervical erosion, cervical polyps, endometriosis, endometrial hyperplasia, uterine fibroids, adenomyosis, tubal blockage, squamous intraepithelial lesions of the cervix, etc.; 3. ovarian diseases: ovarian chocolate cysts, polycystic ovary syndrome, ovarian tumors, etc.; 4. Infertility: cervical infertility, endocrine infertility, uterine infertility, tubal infertility, etc.; 5. Menstrual abnormalities: menstrual irregularities, menstrual disorders, functional uterine bleeding, dysmenorrhea, etc. Obstetric diseases: From pregnancy to delivery, the possible diseases are divided into the following categories: 1. In addition, diseases such as pelvic floor muscle dysfunction, genital injuries, bulging of the anterior and posterior vaginal walls, and vulvar intraepithelial neoplasia can also be seen in obstetrics and gynecology.