The cost of pre-pregnancy examination for the second child is related to the items to be examined. Different regions and different levels of hospitals charge different fees, and you should consult the doctor in the relevant department of your local hospital for the specific cost. The general basic cost is around 1,000 yuan, including basic blood tests and pelvic ultrasound. For example, routine blood test, routine urine test, routine coagulation test, hepatitis series, full biochemistry test, screening test for syphilis and AIDS, eugenics five, gynecological internal examination, and pelvic ultrasound test. If the first child is a normal birth, it is recommended to have a second child after one and a half years, or a three-year interval if it is a cesarean section. If there are complications of pregnancy in the first child, such as gestational diabetes, preterm labor, gestational hypertension, etc., the pre-pregnancy examination for the second child needs to be more careful. Further tests in relevant areas, such as monitoring of blood glucose, blood pressure, and hypertension quadruple test, are required to assess the safety of another pregnancy.