Archaeologists found three mysterious ovoid rocks alongside a prostrate skeleton in the ancient Al Khiday cemetery in Sudan.
![](https://s3.ap-northeast-2.amazonaws.com/dclick/image/kaneko/1561921184994)
[Source](https://s3.ap-northeast-2.amazonaws.com/dclick/image/kaneko/1561921184994)

They decided that the stones were not placed there as a burial gift and that they could not find their way through some geological coincidences.

Instead, they came to the conclusion that the stones originated from the man's body. This formation is thought to occur as a result of calcium accumulated in the prostate as in kidney stones.
![](https://s3.ap-northeast-2.amazonaws.com/dclick/image/kaneko/1561921194275)
[Source](https://s3.ap-northeast-2.amazonaws.com/dclick/image/kaneko/1561921194275)

People have been exposed to this disease for at least 12,000 years.

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