Chlamydia is a sexually transmitted disease (STD) that is caused by the bacteria, Chlamydia trachomatis. This bacteria can damage a woman’s reproductive organs. Even though the symptoms of this STD are mild or sometimes even absent, serious complications can cause irreversible damage.

Both men and women can carry the bacteria. It is excreted from the end of the penis in an infected male. But it is the woman who suffers the most from the damaging secondary effects of the infection.
Chlamydia is the most frequently reported bacterial STD in the US. In 2006 there were over one million cases reported to the CDC. Consider also that there is significant under reporting in these numbers because not all people with the infection are aware of the condition and seek testing. And testing isn’t always done when patients are treated for their symptoms.