![]() Candiru – a little fish with a bad reputation: need travel health professionals worry? DOI: 10.1111/jtm.12005 a-lenda-do-candiru-sera-que-e-lenda-mesmo/ You can learn more about how we ensure our content is accurate and current by reading our editorial policy. Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. Caused by the parasite Trichomoniasis vaginalis, this infection can impact the urethra and cause itching, discharge, and discomfort while urinating. Caused by the herpes simplex virus, this infection causes painful sores to develop on the genitals, anus, and urethra. Caused by the bacterium Chlamydia trachomatis, this infection can also cause discharge and painful urination. Caused by the bacterium Neisseria gonorrhoeae, this infection can cause discharge and painful urination when it affects the urethra. Some examples of STIs that can involve the urethra include: ![]() Although these infections often affect the outer genitals, they can also affect the urethra. This condition can cause discharge and a burning feeling when urinating. When a UTI affects the urethra, it’s referred to as urethritis. Fungal infections can also sometimes cause a UTI.Ī UTI can affect any part of the urinary tract, including the kidneys, bladder, or urethra. UTIs happen when bacteria enter the urinary tract via the urethra and cause an infection. This usually results in either a urinary tract infection (UTI) or sexually transmitted infection (STI). While the candiru’s reputation as the “penis fish” is likely based on myths, some tiny organisms can indeed travel up the urethra. The limited space and lack of oxygen would make it almost impossible for the fish to survive. If a candiru has ever entered a human urethra, it was likely by mistake. ![]() ![]() Additionally, many of the historical reports are anecdotal accounts relayed by early explorers or travelers to the region. There are very few reports of candiru attacks in scientific or medical literature. When researchers added chemical attractants, including human urine, to a tank of candiru, they didn’t respond to it. In addition, a 2001 study found that the candiru might not even be attracted to urine. In a report made in Portuguese, a Brazilian urologist claimed to have removed a candiru from a person’s urethra.īut inconsistencies in the account, such as the actual size of the extracted fish and the history given by the affected person cast doubt on the truth of the report. The most recent reported case occurred in 1997. Despite all of these claims, there’s very little credible evidence that the candiru fish has ever invaded the human urethra. ![]()
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