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Think Your Body Is Infested With Insects? You're Not Alone. (nationalgeographic.com)

Erika Engelhaupt, National Geographic: A few years ago, a man began telling his family members a horrifying tale: There are bugs living inside him. [...] He shows the classic signs of what scientists call delusory parasitosis, or Ekbom syndrome, an unwavering but incorrect belief that the patient's body has been infested with something. For years, entomologists have insisted that these delusions aren't as rare as psychiatrists and the public may think. And now, a study by the Mayo Clinic suggests they're right. The first population-based study of the condition's prevalence suggests that about 27 out of a hundred thousand Americans a year have delusions of an infestation. That would mean around 89,000 people in the U.S. right now are plagued by the condition.

For many sufferers of such delusions, the infestation takes the form of insects or mites, usually tiny and often described as biting or crawling on the skin. Others report feeling worms or leeches or some kind of unknown parasite. Many of the afflicted turn up, eventually, in an entomologist's office. And as the entomologists tell them, only two kinds of arthropods actually infest humans: lice and a mite that causes scabies. Both are easy to identify and cause characteristic symptoms. Bedbugs or fleas might infest a house, but they don't actually live on or inside the human body; they just feed on us and leave. Likewise, there are mites that live on our skin, especially the face, but they're a normal part of everyone's body, much like the bacteria living in our guts.

3 of 123 comments (clear)

  1. And when they are right? by whoever57 · · Score: 4, Informative
    --
    The real "Libtards" are the Libertarians!
  2. Re:It's very real(istic) by charliemerritt03 · · Score: 4, Informative

    I have neuropathy - and I have itches on my back, which move around. The itch is real, but there is no bug, rash, spider. I could EASILY see someone thinking otherwise, it could be "explained" as bugs, or for me - tiny worms under the skin. Thank goodness I know it's "only" sick nerve endings.

  3. There are more than two arthropods by DERoss · · Score: 3, Informative

    The second paragraph of the SlashDot article states there are only two arthropods (insects and their relatives) that actually infest humans. In addition to the follicle mites cited as eyelash mites in other replies, botfly larvae are another. And botflies are actual insects. Rare but not unknown are also human infestations by blowflies and screwflies. Search Wikipedia for "Myiasis".