Dr. YANG Jingyan, who graduated from Zhejiang Medical University in 1992, has been a senior attending of the Department of Reproductive Medicine Center & Obstetrics and Gynecology for more than 15 years. Dr. Yang specializes in the treatment of gynecological malignant tumors and high-risk obstetric diseases such as postpartum hemorrhage, placenta previa, amniotic fluid embolism and eclampsia et.al. She is skilled in the treatment of cervical insufficiency and completed a great number of cases by modified transvaginal cervicoisthmic cerclage. She provides treatment services including laparoscopic gynecological surgery, modified transvaginal cervicoisthmic cerclage, and obstetrical surgery.