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The Most Horrifying Things Found Living Inside People

Updated May 12, 2020 1.8m views19 items

It's not what's on the outside you should be worried about. It's what may or may not be secretly living inside you that should keep you up at night. The creepy crawlers on this list of terrifying things found living inside humans will give you nightmares for weeks. Some entered these humans through food, while others dropped their eggs right on an unsuspecting host's head. However they got there, they will all make your skin crawl.

Here is a list of the creepiest non-human invaders that could end up living inside you, sometimes without your knowledge. This list of horrifying things found living inside people includes insects, other bugs, worms, sperm, fis-- wait, what? Sperm?

Yes. Sperm. Squid sperm to be specific. Click through the list below to find out what kinds of creepy creatures have been found living inside humans, and could one day end up inside you.
  • Doctors Found A Cockroach Living In Woman's Skull

    In a true nightmare-come-to-life, doctors in India discovered a living cockroach in a woman's skull after she complained of a "crawling sensation" inside her head. According to news reports, the cockroach entered the woman's nose as she slept and bore a path underneath her skin up to her skull.

    The woman said she could feel a weird burning sensation and had to wait until the morning to go see the doctor. The cockroach was alive and "didn't want to come out," according to the doctors. 

  • A Botfly Laid Eggs In A Five-Year-Old's Eyeball

    There are few things worse than getting something in your eye. On the bright side, the temporary blindness is usually easy to alleviate. Simply remove the eyelash, piece of glitter, speck of dust, whatever, and go on about your day. For one 5 year-old boy in Honduras, however, the solution was a bit more complicated (and expensive). That's because the thing in his eye was a Human Botfly. Do yourself a favor and never, ever Google "botfly." And for the love of kittens, do NOT then click "Images."

    These little buggers are very selfish. The lady botfly lays her eggs on the outside of another living creature (like a mosquito) that will drop them onto bigger animals so that when the eggs hatch, the larvae can squirm inside the host to brew. Some species of botfly prefer to burrow inside warm-blooded animals, like squirrels, horses, and human people.

    A visit from a botfly parasite is usually not that hard to fix - a simple surgical procedure will do the trick. But the larva living inside the Honduran boy's face was both "late-stage" and camped out in his anterior orbit. That meant the surgery required a Buñuel-style incision on the old conjunctiva.

  • A Fish Swam Up 14 Year-Old's Urethra

    I'm sure you've heard of that little fish (the candirú) that will swim into your urethra if you ever whip it out in the Amazon. It's real - and a real good reason to never whip it out in the Amazon. But there's another, related story that you should know. Think of it as a cautionary tale about handling exotic pets.

    In India, a 14 year-old-boy went to the hospital complaining of pain in his bladder and an inability to urinate. The doctors did an ultrasound and discovered an object in the bladder, blocking his urethra. The boy was taken to surgery where the doctors cut him open. Can you guess what they found?

    The fish was 2 cm long and lodged all the way up inside his bladder. And here comes the best part. When asked how it got there, this was the boy's answer:

    While he was cleaning the fish tank in his house, he was holding a fish in his hand and went to the toilet for passing urine. While he was passing urine, the fish slipped from his hand and entered his urethra and then he developed all these symptoms.

    After surgery, the boy was released, but taken to psychiatric counseling.


  • An Eel Swam Up 56 Year-Old's Urethra

    Leeches, maggots, seeing-eye dogs... There's a long colorful history of humans trying to make lesser animals do things for them. In England, rich people pay cash money to lay in spa pools and let little eels nibble the dead skin off their bodies. Hey, I'm not here to judge.

    The process leaves the skin looking so fresh and so clean, and it's so effective that other countries have hopped on board the eel spa bandwagon. In 2011, 56 year-old Zhang Nan went for treatment at one such establishment in China, but he was never the same again.

    Nan was laying in the pool when he started to feel something sharp tugging at his penis. He looked down to see a small eel working its way up into his urethra. According to Nan, he tried to grab it and pull it out, but the little fish was too slippery. Its body working like a lubricant (gag), the eel disappeared inside Nan's shaft in a matter of seconds.

    He was taken to hospital and immediately put into surgery. After three hours, the animal was removed. It was six inches long. SIX. SIX INCHES. Forgive me, but sometimes the cost of beauty is just too much.

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