(1) benign obstetric and gynecological diseases: uterine fibroids, adenomyosis, ectopic pregnancy, scar pregnancy at the uterine incision, postoperative gynecological surgery and trauma, postpartum bleeding, etc.; (2) malignant obstetric and gynecological diseases: preoperative adjuvant chemotherapy for gynecological malignancies, which can kill cancer foci around the tumor, reduce intraoperative bleeding and tumor metastasis, and strive for surgery; palliative treatment for recurrence of gynecological malignancies, bleeding due to gynecological malignancies, and hemostasis of bleeding caused by gynecological malignancies; (2) contraindications. (2) Contraindications: (1) infection at the puncture site; (2) serious coagulation mechanism disorder; (3) acute and chronic gynecological inflammation not controlled; (4) serious dysfunction of important organs such as heart, liver and kidney; (5) systemic metastasis of malignant tumor, etc;