The candiru is a tiny fish that induces fear in many people because it’s been rumored about that it’s attracted to human urine and can swim up someone's stream of urine into their urethra and cause severe pain and infection.
Despite one sketchy documented case, these rumors appear to be false. Besides, this tiny, translucent fish is too big to enter a human urethra. The facts just don't match the stories.
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All these fish normally does is stick its head into a fish's gills and drink their blood. Still freaky, but not nearly as terrifying.
The candiru is a tiny fish that induces fear in many people because it’s been rumored about that it’s attracted to human urine and can swim up someone's stream of urine into their urethra and cause severe pain and infection.
Despite one sketchy documented case, these rumors appear to be false. Besides, this tiny, translucent fish is too big to enter a human urethra. The facts just don't match the stories.
https://www.youtube.com/watch?v=QQWgUht-ObI
https://en.wikipedia.org/wiki/Candiru
The earliest published report of candiru attacking a human host comes from German biologist C. F. P. von Martius in 1829, who never actually observed it, but rather was told about it by the native people of the area, including that men would tie a ligature around their penis while going into the river to prevent this from happening. Other sources also suggest that other tribes in the area used various forms of protective coverings for their genitals while bathing, though it was also suggested that these were to prevent bites from piranha. Martius also speculated that the fish were attracted by the "odor" of urine.[8] Later experimental evidence has shown this to be false, as the fish actually hunt by sight and have no attraction to urine at all.[9]