Lymphogranuloma venereum (LGV) is a bacterial infection which is transmitted through sexual contact. Although it is more frequent in tropical countries, it was first detected in Europe in 2003 and generally appears in men who have sexual relations with other men. The disease is caused by a bacterium called Chlamydia trachomatis subtype L1-L3.
A person who is infected with lymphogranuloma venereum may not present symptoms. If they do, the symptoms are usually pain in the anus and rectum, anal bleeding or discharge, changes in bowel habits or penile discharge.
If LGV goes untreated, in the long term it can cause the patient serious health problems.