High-risk pregnancy is a pregnancy with a high risk to the mother, fetus and newborn. High-risk pregnancy is the subject of perinatal monitoring, and pregnant women themselves and their families should pay close attention to it. Health care measures: 1, senior primigravida and short, malnourished, underweight (less than 45 kg) and overweight (more than 85 kg) pregnant women, once pregnant, that should pay great attention to prenatal examination. 2.Pregnant women with a history of pre-eclampsia and birth control in early pregnancy, a history of viral infection or exposure to teratogenic factors during early pregnancy, a history of unexplained habitual miscarriage, stillbirth, stillbirth or birth of deformed babies, a history of neonatal hemolysis, a history of obstructed labor, a history of postpartum hemorrhage, should promptly visit the genetic counseling clinic or the high-risk obstetrics department. 3, pregnant women should not be overly nervous after being classified as “high-risk” due to the combination of various diseases.