Husband’s Permission REQUIRED for Women’s Sterilization

Rubber stamp with ENDORSED text on paper.

Japan’s government continues to deny women the fundamental right to choose voluntary sterilization, maintaining a draconian wartime-era law rooted in eugenics that treats women as state property rather than autonomous individuals.

Story Snapshot

Japan’s 1948 “maternity protection” law blocks voluntary sterilization unless women have multiple children and face health risks, requiring spousal consent even then
Five women are challenging the constitutionality of this law, with a landmark verdict expected next week that could reshape reproductive rights
The restrictive policy stems from 1940 wartime eugenics laws when women were explicitly treated as state resources for population growth
Japan stands as an outlier among only eight countries globally that severely restrict sterilization, while over 70 nations explicitly permit it as contraception

Wartime Eugenics Law Still Controls Women’s Bodies

Japan’s sterilization restrictions trace directly to National Eugenics laws introduced in 1940, when the government explicitly viewed women as state resources for producing children. The 1948 revision of these wartime policies established the framework that persists today, despite Japan’s transformation into a modern democracy. Under current law, sterilization is permitted only when a woman has multiple children and faces health risks, or when pregnancy threatens her life. Even meeting these stringent conditions requires spousal consent, effectively denying married women autonomy over their own bodies. This paternalistic framework treats women as incapable of making informed decisions about permanent contraception.

Government Claims Protection While Denying Self-Determination

The Japanese government defends these restrictions by claiming they protect women from future regret, arguing the law helps guarantee rights to self-determination over childbearing. This reasoning fundamentally contradicts itself by denying women the very self-determination it purports to protect. Lead lawyer Michiko Kameishi characterizes the law as managing all fertile women as potential maternal bodies rather than recognizing them as independent beings. The requirement for spousal consent particularly undermines individual liberty, suggesting women cannot be trusted to make permanent decisions about their reproductive capacity without male approval.

Forced to Flee for Freedom

Twenty-nine-year-old plaintiff Kajiya was forced to fly to the United States to have her fallopian tubes removed, describing the procedure as her ultimate rejection of being treated as a future incubator. Her experience illustrates the absurd reality facing Japanese women who seek reproductive autonomy. While more than 70 countries explicitly permit sterilization as a contraceptive method, Japan remains among only eight nations that forbid or severely restrict the procedure, according to a 2002 EngenderHealth study. This puts Japan significantly out of step with peer democracies and modern standards of individual liberty and bodily autonomy.

Demographics Cannot Justify Government Control

Japan faces legitimate demographic challenges, with 2023 recording just 758,631 births—the lowest since 1899 and a 5.1 percent decline from 2022. The government projects 2024 births will drop below 700,000 for the first time. However, restrictive reproductive policies cannot reverse population decline when underlying economic factors remain unaddressed. Actress Chizuru Higashi correctly identified that women lack confidence about childbearing because their employment and income are unstable, not because they have too much reproductive freedom. Demanding corporate culture, employment instability, and limited contraceptive access contribute far more to declining birth rates than women choosing sterilization.

The upcoming verdict represents a critical test of whether Japan will recognize reproductive self-determination as a constitutional right or continue treating women as means to demographic ends. The contrast between restrictive female sterilization policies and more lenient enforcement for male vasectomies reveals the gendered nature of government control. This paternalistic approach fundamentally conflicts with principles of limited government and individual liberty that conservatives champion. A government powerful enough to deny women control over their reproductive capacity possesses power that threatens fundamental freedoms for all citizens, regardless of the demographic justifications offered.