The standard of HCG value after transplantation varies at different times after transplantation. If the HCG is greater than 10IU/L just after transplantation means the transplantation is successful, if it is less than 10IU/L means the transplantation has failed. The HCG value can reach 100IU/L in 10 days after transplantation and 500IU/L in 14 days. It is better to go to a regular hospital to have a blood test to see the HCG value. Under normal circumstances, a doubling of the HCG value every other day indicates that the embryo is developing normally. It is recommended to have a blood test to recheck the HCG, and there is no need to worry as long as the fetus is developing normally, and regular ultrasound examination is also needed. If the HCG value is low, it is considered to be a precursor of miscarriage or the embryo may not be developing well, so it is better to go to the hospital for further examination. One HCG value cannot determine the development of the embryo and several tests are needed to determine whether the fetus is developing normally.