Experiments On Humans At Their Most Horrifying In Unit 731

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Human experimentation has been argued to be the most horrific instance of cruelty in the history of world. In today’s modern society where unnecessary human body damage and loss does not happen, and barbarous warfare techniques are not needed, human experiments are not something frequently thought about. Sadly, however, experiments are still currently performed in North Korea.

World War II was the time period when human experimentation was most abundant (the Nazis carried out hundreds of sadistic trials). Lesser known during this time, however, though equally as appalling – if not more so – were the crimes committed by the Imperial Japanese Army’s Unit 731. This unit was a biological research center that operated despite the Geneva Protocol, which legally banned chemical and biological warfare.

The psychotic Lieutenant-General Ishii Shiro commanded the entire operation. 3,000 researchers at the Harbin headquarters ran the center itself. The center was created in 1938 when Japan occupied China. Japan had the goal of generating biological weaponry. Though some numbers are still disputed, scholars approximate that 250,000 men, women, and children underwent experiments within the camp. A majority of prisoners there were of Chinese descent, and a small number of other prisoners were Russian, Mongolian, and Korean. No prisoner who went into the Unit came out alive.

Credit: Unit 731

For more than forty years, Unit 731 and its evil secrets remained just that – secrets of WWII. Before the Japanese surrendered the War, the physical site of Unit 731 had to be abolished. The 400 prisoners who remained there also had to be terminated and were shot dead. The staff was sworn to secrecy. To make matters worse, the researchers were not even placed on trial. Instead, those involved with Unit 731 were granted immunity by the US in exchange for the handing over of experimental conclusions and information.

Not until 1984 did Japan finally acknowledge the terror that took place in the camp. Yet, even though many experimental methods have been exposed, there are still some occurrences that remain a mystery. Here are some details about the ones that have been uncovered:


This is perhaps one of the most malicious processes of the bunch. This painful experiment consisted of taking prisoners outside in below-freezing temperatures, dipping body parts in water, and forcing them to freeze, exposed to the frigid air. One Japanese officer said:

“It was determined after the frozen arms, when struck with a short stick, emitted a sound resembling that which a board gives when it is struck.”

The ice that had formed on the body was chiseled away and then again covered with water. In some other ghastly descriptions, prisoners were beaten to determine if any areas were still frozen solid. If you would like to see a way-too realistic account of this experimental method, here is clip from the move “Man Behind the Sun” – a film about Unit 731 and its atrocities (warning: contains graphic images):

[youtube https://www.youtube.com/watch?v=blI1CLco4W4]


Credit: BBC News

Vivisection is a surgery that is carried out in order to explore living internal organs. Thousands of Unit 731’s prisoners underwent this surgery but without anesthesia. It usually resulted in death. The surgery was generally implemented on sufferers after a disease had inflicted them in order to study the effects of it on the body.

In other instances, victims had their limbs entirely removed in order to study the effects of blood loss. Still even others had their limbs frozen and then thawed to examine the impacts of untreated gangrene. Here is an account from one medical assistant at the center:

“The fellow knew that it was over for him, and so he didn’t struggle when they led him into the room and tied him down. But when I picked up the scalpel, that’s when he began screaming. I cut him open from the chest to the stomach. He screamed terribly, and his face was all twisted in agony. He made this unimaginable sound, he was screaming so horribly. But then finally he stopped. This was all in a day’s work for the surgeons, but it really left an impression on me because it was my first time.”

Credit: AHRP


Doctors arranged and organized STD infection between Unit 731’s victims. They would enforce sexual acts between non-infected patients and infected patients in order to transfer syphilis. A prison guard described:

“Infection of venereal disease by injection was abandoned, and the researchers started forcing prisoners into sexual acts with each other. Four or five unit members, dressed in white laboratory clothing completely covering the body with only eyes and mouth visible, handled the tests. A male and female, one of them infected with syphilis, would be brought together in a cell and forced into sex with each other. It was made clear that anyone resisting would be shot.”

The guards labeled women’s infected genitals “jam-filled buns”. And once the patient was infected? Vivisection.

Some female prisoners were even forced into sex and then carrying out a pregnancy if it so happened. Researchers wanted to conduct fetal survival experiments as well as the extent of damage on a mother’s organs once she has contracted syphilis. Another prison guard describes the brutality of the sex crimes in the Unit:

            “One of the former researchers I located told me that one day he had a human experiment scheduled, but there was still time to kill. So he and another unit member took the keys to the cells and opened one that housed a Chinese woman. One of the unit members raped her; the other member took the keys and opened another cell. There was a Chinese woman in there that had been used in a frostbite experiment. She had several fingers missing and her bones were black, with gangrene setting in. He was about to rape her anyway, and then he saw that her sex organ was festering, with pus oozing to the surface. He gave up the idea, left, and locked the door, then later went on to his experimental work.”


Credit: First to Know

One of the main reasons victims were tested at Unit 731 was to analyze the impact of diseases. In many instances, the captives were inoculated with specific diseases masked as vaccines to examine the effect of untreated illnesses like gonorrhea.

The scientists created and tested bio warfare that was used in attacks on the Chinese. Infected clothing, plague fleas, and diseased supplies contained in bombs were dropped onto numerous places. Research with cholera, smallpox, the Bubonic plague, botulism, and other infections was performed on prisoners. These particular experiments generated the development of the defoliation bacilli bomb as well as the flea bomb. Both were used to spread the Black plague.

While these may seem like the most horrifying of all human experimentation methods, there are even more torturous experiments not mentioned including starvation, coercion into high-pressure chambers, weapon testing in which humans were used to test grenades, effects of burns, and even being buried or burned alive. Even thinking about the few already mentioned is plenty to make anyone sick, and it is absolutely horrifying to imagine what thousands of innocent people had to endure just for the sake of unnecessary experimentation.

Here is a little bit of a different kind of experiment that will hopefully lift your mood. Take a look at the difference between how girls and guys reject each other. xawtxweyfbeydxvqyyabysvesa

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