The early eugenics scholars in the West once led eugenics astray out of prejudice and lack of genetic knowledge.

At the beginning of the 20th century, German eugenics scholars proposed racial hygiene, propagating that Nordic people were an excellent race, and preventing the excellent Aryan blood from being contaminated by inferior races. Later, it developed into collaborating with the Nazis' anti-Semitic racism, and actually

Hitler's "final solution" to the "Jewish problem" in the early 1940s and the mass murder of Jews provided public opinion preparation and theoretical basis.

Some early eugenicists also infinitely expanded the role of heredity. Not only did they believe that human physical and mental traits were all determined by heredity, they even included crime, alcoholism, violent behavior, and wandering habits into the category of Mendelian inheritance.

Such views have exerted considerable influence on the public, promoted racial discrimination, and have been reflected in the legislation and immigration policies of some countries.

In the 1920s, the Soviet Union established eugenics research institutions and eugenics societies, and published eugenics magazines.

It was banned in the late 1920s, and relevant scholars turned to the field of animal and plant research.

The Institute of Medical Genetics was also disbanded in the 1930s, and human genetics and eugenics were declared Nazi science.

After the 1940s, eugenics research has been in a state of suffocation.

It was not until 1971 that the Institute of Medical Genetics was re-established. In recent years, it has also begun to call for measures in publications to improve people's innate qualities and reduce or eliminate the influence of adverse genetic factors.

Japan's early eugenics movement was greatly influenced by Germany, Britain and the United States.

After the Second World War, in June 1948, the Parliament passed a law to implement preventive eugenic measures.

The current high school textbook "Higher Health Education" (1978) also contains basic knowledge of genetics and eugenics laws, so that citizens can understand that practicing eugenics is a national obligation in middle school.

These practices have played a positive role in improving the genetic quality of Japanese people.

In the early 1920s, eugenics began to be introduced into China, which was translated as "good seed science" at the time.

Later, Chinese scholar Pan Guangdan went to the United States to specialize in eugenics. After returning to China, he taught eugenics at universities in Shanghai, Beijing and other places, and translated several monographs such as "Principles of Eugenics".

After the founding of the People's Republic of China in 1949, eugenics was criticized under the influence of the Soviet Union.

In 1979, the academic community initiated the opening of this restricted area, which immediately attracted the attention of the public and related parties in the context of the need to limit the population and the widespread development of medical genetics.