If two or more embryonic sterilizations occur, the cause should be actively identified, and if chromosomal abnormalities are involved, they should be prevented in advance, and tests such as prenatal diagnosis should be done during pregnancy. Chromosomal abnormalities in embryos can be caused by environmental, chemical, biological and genetic factors. If the chromosomal abnormality is caused by the embryo, the embryo should maintain a good living environment and stay away from toxic and radioactive environments during pregnancy to reduce the risk of chromosomal abnormality. In addition to regular checkups during pregnancy, an obstetrician should be consulted during pregnancy to perform amniocentesis to detect any congenital chromosomal abnormalities in the fetus. If it is determined that hereditary chromosomal abnormality has caused repeated embryo abortions, both spouses should consult the Department of Reproductive Medicine as to whether assisted reproduction through third-generation in vitro fertilization (IVF) can be carried out to satisfy the requirements for reproduction.