On the 11th day of fresh embryo transfer, the blood value, i.e. HCG value, is normal when it is around 100IU/L, but there will be individual differences. Fresh embryo transfer is a kind of in vitro fertilization embryo transfer technique, which needs to be operated by a professional doctor, and is mainly applied to tubal infertility and endometriosis. Pregnancy can usually be confirmed by blood or urine HCG (Human Chorionic Gonadotropin) level measurement at about 2 weeks after the transfer, and it is normal to have a blood HCG value of about 100 IU/L on the 11th day after the transfer. After pregnancy, blood HCG can be secreted by trophoblast cells at the earliest after the fresh embryo transplantation and gradually rise with the increase of gestational weeks, and the value of 1-2 days between measurements can rise by a factor of 1. Therefore, monitoring the level of blood HCG in early pregnancy can help to understand the development of the embryo. When the test results indicate that HCG is slow to rise or does not double significantly, there may be a risk of embryonic dysplasia and active treatment is needed.