If you have severe back pain after embryo transfer, you need to take proper rest, increase nutrition, and follow the doctor’s instructions for fetal preservation treatment if necessary. 1. Appropriate rest: frozen embryo transplantation back pain, may be related to the body’s hormone level changes, need to follow the doctor’s advice to pay attention to appropriate bed rest, avoid strenuous exercise and fatigue, but also prohibit coitus. 2. Fertility preservation treatment: after the transplantation of blood or urine HCG (human chorionic gonadotropin) levels to determine the pregnancy, but also comply with the doctor’s orders for ultrasound to clarify the intrauterine pregnancy and to understand the development of the embryo, when there is a vaginal bleeding, back pain and other symptoms of preeclampsia, if necessary, comply with the doctor’s orders to give progesterone and other medications to preserve the fetus treatment. When the back pain is severe after the frozen embryo transfer, you should go to the hospital in time and actively deal with it under the guidance of the doctor.