Eugenics is a term loaded with controversies and emotions. It has been a very popular topic between 1880 and 1945, similar to the current heated discussion of heredity manipulation on designer babies, gene therapy, stem-cell research and human cloning. This chapter discusses that Japanese and Chinese eugenics as two possible outcomes shows the complexity of the issues and escapes the indictment of either vindicating the bad name of eugenics in East Asia before 1945 and defending the current implementation of a eugenics bill in China, or ignoring the local desire for better health and better life. The different eugenic approaches of Marion Yang's birth control and Yoshioka Yayoi's anti-abortion and birth control speak to the core of women's perennial suffering within the regime of patriarchy. The Japanese silence about fascist atrocities and the eugenic past of racial exclusion aggregates messier the entanglement of complicity of science and subjectivity in general.