The main tests to be done to prepare for pregnancy after an embryonic arrest include: chromosome test for both partners, reproductive immunity antibody, female sex hormone, gynecological ultrasound, cervical screening and vaginal secretion examination, thyroid function, TORCH, male semen routine examination and quality analysis, and so on. Routine preconception tests include sex hormones, gynecological ultrasound, cervical screening and thyroid function for women, and routine semen examination and quality analysis for men. If you have had an embryonic arrest, in addition to the routine preconception examination, you need to focus on chromosome examination and reproductive immune antibody examination to detect immune arrest or chromosomal abnormality before you prepare for pregnancy again. Oral folic acid can be taken during the preparation for pregnancy to prevent the occurrence of neural tube malformation in newborns. Couples choose to prepare for pregnancy in good health to help reduce the chance of fetal arrest. It is important to take rest, have a regular routine, avoid late nights, and avoid exposure to harmful substances.