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Which bacterium causes gonorrhea?

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sexually transmitted disease Scanning electron micrograph of the spirochete *Treponema pallidum* attached to testicular cell membranes.

Gonorrhea is caused by the bacterium Neisseria gonorrhoeae, also known as the gonococcus. This bacterium specifically targets the mucous membranes of the genitourinary tract and can lead to serious health complications if left untreated, including infertility and systemic infections.12