A painless, open sore (ulcer) forms in the first stage of lymphogranuloma venereum. This image displays very large lymph nodes in the groin, typical of the sexually transmitted disease lymphogranuloma venereum. The second stage of lymphogranuloma venereum begins two to six weeks after the primary genital lesion and consists of painful swelling of the groin or other lymph nodes.
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Lymphogranuloma Venereum (LGV)  Information for adults

Picture of Lymphogranuloma Venereum (LGV): A painless, open sore (ulcer) forms in the first stage of lymphogranuloma venereum. Divider line
A painless, open sore (ulcer) forms in the first stage of lymphogranuloma venereum.
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Who's At Risk
Lymphogranuloma venereum has been found in people all over the world, but it is more commonly seen in tropical and subtropical countries. It is uncommon in the US and Europe, but, in recent years, more outbreaks have occurred in both areas, most often in white males who have sex with other men and who also are infected with HIV.

Lymphogranuloma venereum may affect any age and race and is probably equally common in men and women. However, men are often diagnosed in the earlier stages (probably because it is more visible) than women, who are often diagnosed in later stages, with complications. The peak ages are 15–40 years in the sexually active population. Anyone who has unprotected sex is at risk for lymphogranuloma venereum.
Last Modified: 22 Dec 2008