Which bacterium causes chlamydia infections?
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reproductive system disease
Varicocele, enlargement of the veins of the spermatic cord, is a cause of infertility in men.
The bacterium that causes chlamydia infections is Chlamydia trachomatis.1
While the term "chlamydia" often refers to the sexually transmitted infection, the genus Chlamydia also includes other species, such as C. psittaci and C. pneumoniae, which cause different conditions. C. trachomatis is specifically responsible for several diseases, including the sexually transmitted infection known as chlamydia, as well as trachoma, lymphogranuloma venereum, and conjunctivitis.12