The pre-transfer frozen embryo regimen includes monitoring endometrial thickness and lifestyle adjustments to facilitate a successful transfer. 1. Monitoring the endometrium: Transferring frozen embryos is a kind of in vitro fertilization-embryo transfer technique. Before frozen embryo transfer, the thickness and morphology of the endometrium should be known through natural cycle and ultrasound examination. When there are abnormalities such as thin endometrium, you can follow the doctor’s advice to give artificial cycle treatment and review the normal before transfer. 2. Lifestyle adjustment: Adopt a good routine, rest on time, avoid staying up late to ensure sufficient sleep time, maintain a relaxed and happy mood, increase diet and nutrition, and do moderate physical exercise to improve body resistance. In addition, patients also need to carry out follicle monitoring under the guidance of a professional doctor, if the body appears to be unwell to consult a doctor in time for treatment.