The dangers of pregnancy at age 35 include an increased risk of pregnancy complications, complications, fetal malformations, and miscarriage. The International Federation of Obstetrics and Gynecology defines the age of delivery at 35 and above as advanced age. Advanced pregnancy is prone to complications such as hypertensive disorders of pregnancy and gestational diabetes, and the risk of depression is also significantly higher. Due to the elevated incidence of chromosomal abnormalities in the fetus and fetal malformations in advanced pregnancy as compared with that of a normal pregnant woman, rigorous prenatal screening and prenatal diagnosis should be carried out in the middle of pregnancy. According to surveys, the number of elderly pregnant women in China is increasing year by year. It is recommended that elderly women go to professional medical institutions for pre-pregnancy evaluation, genetic counseling, and professional pre-pregnancy health education before preparing for pregnancy, in order to reduce the incidence of adverse outcomes during pregnancy.