Fresh Embryo Transfer 28 Days Hemorrhage Ultrasound suggests active fertility preservation when the embryo is developing normally, but when the embryo is lost there is no need for fertility preservation. Fresh embryo transfer is a method of in vitro fertilization-embryo transfer technique, which is an assisted reproductive technology and needs to be operated by a professional doctor. When heavy bleeding occurs 28 days after fresh embryo transfer, ultrasound examination is needed. When it suggests normal embryo development and in combination with progesterone and blood hCG (human chorionic gonadotropin) levels, active fertility preservation treatment is needed. However, when there is more vaginal bleeding after the transfer and the ultrasound suggests that the embryo is underdeveloped or has been lost, and the progesterone and blood hCG levels are low, there is no need to carry out fertility preservation, and the pregnancy can be terminated according to the doctor’s instructions in time, and the uterus needs to be cleared if necessary. When the fresh embryo transfer 28 days hemorrhage need to go to the hospital in a timely manner, in order to give timely appropriate treatment.