Miyuki Ishikawa

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Miyuki Ishikawa
Miyuki Ishikawa Kotobuki-Sanin Incident.jpg
Miyuki Ishikawa was surrounded by police officers at the Waseda police station
Other namesOni-Sanba (Demon Midwife)
Criminal penalty4 years in prison
Span of crimes
April 1944–January 1948
Country Japan
Date apprehended
January 15, 1948

Miyuki Ishikawa (石川 ミユキ, Ishikawa Miyuki, born 1897, date of death unknown) was a Japanese midwife and serial killer who is believed to have murdered many infants with the aid of several accomplices throughout the 1940s. It is estimated that her victims numbered between 85 and 169, however the general estimate is 103.[1] When she was finally apprehended, the Tokyo High Court's four-year sentence she received was remarkably light considering that Miyuki's actions resulted in a death toll so high that it remains unrivaled by any other serial killer in Japan.[citation needed] According to a report of Children's Rainbow Center, writer Kenji Yamamoto (山本健治, Yamamoto Kenji) referred to the incident as unbelievable and unbearable.[2]

Early life[edit]

Ishikawa was born in Kunitomi, Miyazaki Prefecture and graduated from the University of Tokyo. She later married Takeshi Ishikawa. The relationship did not produce any children.

She worked as a hospital director in the Kotobuki maternity hospital (寿産院, Kotobuki San-in) and was an experienced midwife.

Infanticide of at least 103 newborns[edit]

In the 1940s, there were many babies in her maternity hospital, and Miyuki Ishikawa found herself facing what she perceived to be something of a quandary. The parents of many of these infants were poor and unable to raise their children properly without financial struggle, and she herself was unable to help the infants because of a lack of social and charitable services.

In order to solve this dilemma, Ishikawa chose to neglect numerous infants, many of whom died as a direct result of this abuse. The exact number of victims is unknown, but it is estimated that she killed at least 103 babies.[1][3][4] Almost all of the other midwives employed by the Kotobuki maternity hospital were disgusted by this practice and resigned from their positions.

Later she also attempted to garner payment for these murders. She and her husband Takeshi solicited large sums of money from the parents, claiming that it would be less than the actual expense of raising these unwanted children. A doctor, Shiro Nakayama, was also complicit in this scheme and aided the couple by falsifying death certificates. The Shinjuku ward office ignored their actions.

Prior incidents[edit]

Similar cases had occurred in Japan before this incident. The people of Itabashi were accused in 1930 of murdering 41 foster children.[5] Hatsutarō Kawamata was arrested in 1933 for murdering at least 25 foster children.[6] The Japanese government was aware of this crisis, but did nothing.

Japanese tradition also disputed the rights of infants. Cases of infanticide by a parent had typically been regarded as bodily injury resulting in death under the Criminal Code of Japan until 1907.

Arrest and trial[edit]

Asahi Shimbun on January 17, 1948, describing their suspicion for 169 murders and her admitting "malice aforethought".

Two police officers from the Waseda police station accidentally found the remains of five of Ishikawa's victims on January 12, 1948. Autopsies performed on the bodies of the five babies proved that they had not died of natural causes. She and Takeshi were arrested on January 15, 1948.

The victims were deserted children, and so she insisted that parents were responsible for their deaths.[7] The public supported the assertion, but Yuriko Miyamoto criticized them, saying it was an example of discrimination.[8]

Upon further investigation the police found over 40 dead bodies in the house of a mortician. Thirty corpses were later discovered in a temple. The sheer number of dead bodies recovered and the length of time over which the murders took place made it difficult for the authorities to determine the exact number of victims. Consequently, the exact death toll remains unknown.

The authorities viewed her homicides as a crime of omission. In the Tokyo District Court, Ishikawa was sentenced to eight years in prison, Takeshi and Dr. Shiro Nakayama were each sentenced to four years imprisonment. The couple appealed their sentences and in 1952 the Tokyo High Court revoked the original sentence and sentenced Ishikawa to four years in prison and Takeshi to two years.


This incident is regarded as the principal reason the Japanese Government began to consider the legalisation of abortion in Japan.[9][10] One of the reasons this incident was thought to have occurred was as the result of an increase in the number of unwanted infants born in Japan. On July 13, 1948, the Eugenic Protection Law (now the Mother's Body Protection Law) and a national examination system for midwives was established. On June 24, 1949, abortion for economic reasons was legalised under the Eugenic Protection Law in Japan.

See also[edit]


  1. ^ a b 寿産院事件 (in Japanese). 無限回廊. Archived from the original on 2012-07-17. Retrieved 2007-11-14.
  2. ^ (in Japanese) 虐待の援助法に関する文献研究 (第1報:1970年代まで)
  3. ^ Takashi Koseki. 養護施設の子どもたち・・・・・・児童と福祉に関連するできごと (in Japanese). Archived from the original on February 11, 2007. Retrieved 2008-02-24.
  4. ^ 1948年 (in Japanese). Kousinren. Retrieved 2008-02-24.
  5. ^ Yomiuri Shimbun. 岩ノ坂もらい子殺し発覚 (in Japanese). Retrieved 2008-03-09.
  6. ^ 目黒もらい子殺し (in Japanese). 誰か昭和を想わざる. Archived from the original on 2009-10-26. Retrieved 2007-12-22.
  7. ^ yabusaka. 寿産院もらい子殺し事件 (in Japanese). オワリナキアクム. Retrieved 2007-12-18.
  8. ^ Yuriko Miyamoto (1948-01-23). "生れた権利"をうばうな (in Japanese). Aozora Bunko. Archived from the original on 2011-07-22. Retrieved 2008-02-25.
  9. ^ (in Japanese) "第1章 少子化社会に至るまでの経緯と少子化問題への対応" (PDF). (103 KiB)
  10. ^ 第147回国会 国民福祉委員会 第10号 (in Japanese). National Diet Library. 2000-03-15. Retrieved 2008-03-11.

External links[edit]