A three-inch-long parasitic leech lived inside a woman's face for over a month

Leeches are one of planet Earth's pinnacles of disgusting. The last time anyone actually wanted a leech on their skin, witches were still something to be feared and burned at the stake, and that was centuries ago.

Thankfully, in this day and age, falling victim to the parasite isn't easy. To even find one, you'd have to wander into the wilderness or swim through a swamp. Or, in the case of Daniela Liverani of Glasgow, Scotland, you could go backpacking through Southeast Asia. That way, you could have a three-inch-long leech living inside your nose for a few weeks.