"At least, not while they’re attached to your body. But people can in Nigeria, Benin, China, Singapore, and Hong Kong. In all of these places, there have been cases of koro (also called suo yang in some places), 'a cultural syndrome where people feel like their genitals are being sucked into their body,' says Frank Bures. 'And there’s a fear of death.' It’s often thought to be caused by some kind of curse, or spell, or spirit—something otherworldly."
The Atlantic interviews Frank Bures, author of The Geography of Madness: Penis Thieves, Voodoo Death, and the Search for the Meaning of the World's Strangest Syndromes.