trustmebro.to/r/…
✓ checked
trust me, bro:
here is the receipt.
the claim

The candiru catfish swims up the human urethra when people urinate in its water.

the verdict
REFUTED
the evidence says no
Recorded sources
1 source for · 1 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that the candiru catfish swims up the human urethra when people urinate in its water?

No. A reference article on the candiru states that the story of the fish springing out of the water and ascending the urine stream into the urethra was dismissed as preposterous and defies fluid mechanics, calling it a stubborn myth. A 1991 paper does report the fish entering urethras of bathers, but not via the urination mechanism the claim asserts.

Verdict: REFUTED · 1 source for, 1 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 1
Candirú: Amazonian parasitic catfish
1991
Get citation
Candirú: Amazonian parasitic catfish. (1991). doi.org. https://doi.org/10.1580/0953-9859-2.4.304

Evidence against · 1
Candiru (fish)
Get citation
Candiru (fish). (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Candiru_(fish)

Receipt History
Anyone with this link can read the claim and its public receipt, including any personal information in that text. Open permanent receipt.
Check your own claim
Challenge the receipt
Requests are recorded for review. This does not start an automatic check or guarantee a response time.

Citation formatting by citeproc-js (Frank Bennett) and the Citation Style Language project. Source and licenses.

This receipt is an automated verdict against our published method · not an opinion about any author or publication.
Terms · Privacy · How verdicts work