Lymphogranuloma venereum
What is Lymphogranuloma venereum?
Lymphogranuloma venereum is a long-term infection of the lymphatic system caused by specific strains of Chlamydia trachomatis bacteria. Your lymphatic system is a network of vessels and nodes that helps fight infection and remove waste from your body. This infection spreads through sexual contact and affects lymph nodes, usually in the groin area.
The condition happens in three stages. The first stage causes a small sore that often goes unnoticed. The second stage brings painful swelling of lymph nodes near the infection site. The third stage can lead to serious complications if left untreated, including scarring and tissue damage.
While lymphogranuloma venereum was once rare in the United States, cases have increased since the early 2000s. The infection is most common among men who have sex with men. Early detection and treatment can prevent serious complications and stop transmission to others.
Symptoms
- Small, painless sore on the genitals, rectum, or mouth that heals quickly
- Painful swelling of lymph nodes in the groin, which may break open and drain
- Fever, chills, and muscle aches
- Rectal pain, discharge, or bleeding
- Painful bowel movements
- Lower abdominal pain
- Joint pain
- Swelling in the genital area
Many people miss the first stage because the initial sore is painless and heals on its own. Symptoms typically appear 3 to 30 days after exposure. Without treatment, the infection can cause lasting damage to your lymphatic system and surrounding tissues.
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Causes and risk factors
Lymphogranuloma venereum is caused by three specific strains of Chlamydia trachomatis bacteria, known as L1, L2, and L3. These strains are different from the ones that cause common genital chlamydia infections. The infection spreads through vaginal, anal, or oral sex with an infected person. The bacteria enter your body through small breaks in the skin or mucous membranes.
Your risk increases if you have multiple sexual partners, practice unprotected sex, or have a history of other sexually transmitted infections. Men who have sex with men face higher risk, particularly in urban areas. Having HIV weakens your immune system and makes you more vulnerable to infection. Living in or traveling to areas where the infection is more common also raises your risk.
How it's diagnosed
Doctors diagnose lymphogranuloma venereum using laboratory tests that detect Chlamydia trachomatis bacteria. A sample is collected from the affected area, such as a genital sore, rectal swab, or lymph node fluid. The most accurate test is a nucleic acid amplification test that identifies the genetic material of the bacteria.
Rite Aid offers testing for Chlamydia trachomatis through our add-on testing options. Testing is important because symptoms can look like other infections. Your doctor may also perform a physical exam to check for swollen lymph nodes and other signs of infection. Blood tests can rule out other conditions with similar symptoms.
Treatment options
- Antibiotics for 21 days, typically doxycycline as the first choice
- Alternative antibiotics like azithromycin for people who cannot take doxycycline
- Treatment for all recent sexual partners to prevent reinfection
- Avoiding sexual contact until treatment is complete and symptoms resolve
- Draining of large, painful lymph nodes if needed
- Follow-up testing to confirm the infection is gone
- Surgery in rare cases where scarring causes lasting complications
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- Simple blood draw at your nearest lab
- Results in days, not weeks
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Frequently asked questions
Lymphogranuloma venereum is caused by specific strains of Chlamydia trachomatis that invade the lymphatic system. Regular chlamydia typically causes genital infections without affecting lymph nodes. Lymphogranuloma venereum requires longer treatment with antibiotics, usually 21 days instead of a single dose. The symptoms and complications are also more severe than typical chlamydia infections.
No, lymphogranuloma venereum will not go away without antibiotic treatment. The infection progresses through stages and can cause serious complications if left untreated. These complications include permanent scarring, narrowing of the rectum, and chronic swelling. Early treatment with antibiotics prevents long-term damage and stops transmission to others.
Symptoms typically appear 3 to 30 days after exposure to the bacteria. The first stage causes a small sore that often goes unnoticed. The second stage with swollen lymph nodes usually develops 2 to 6 weeks after the initial infection. Some people may not notice symptoms until the infection has progressed significantly.
Yes, lymphogranuloma venereum is curable with proper antibiotic treatment. A 21-day course of antibiotics like doxycycline effectively clears the infection in most people. Early treatment prevents permanent damage to your lymphatic system. However, scarring or complications from untreated infection may not be reversible even after the bacteria are eliminated.
You should get tested if you have symptoms like swollen lymph nodes, genital sores, or rectal pain after sexual contact. Testing is also important if a sexual partner has been diagnosed with the infection. People with multiple sexual partners or who practice unprotected sex should consider regular testing. Talk to your doctor if you notice any unusual symptoms in the genital or rectal area.
Yes, untreated lymphogranuloma venereum can affect fertility in both men and women. The infection can spread to reproductive organs and cause scarring. In women, this may lead to pelvic inflammatory disease and damage to the fallopian tubes. Early diagnosis and treatment prevent these complications and protect your reproductive health.
Using condoms correctly during vaginal, anal, and oral sex greatly reduces your risk of infection. Limiting your number of sexual partners also lowers risk. Regular testing helps catch infections early before they spread. Open communication with partners about sexual health and testing history is important for prevention.
Untreated infection can cause permanent scarring of the rectum, genitals, or lymphatic system. You may develop chronic swelling of the genital area called genital elephantiasis. Rectal scarring can narrow the bowel and make bowel movements difficult. Fistulas, abnormal connections between organs, may also form and require surgery to repair.
Yes, you must inform all recent sexual partners so they can get tested and treated. Anyone you had sexual contact with in the 60 days before symptoms appeared should be notified. Your partners need treatment even if they have no symptoms to prevent reinfection and further spread. Many health departments can help notify partners anonymously if needed.
Yes, you can get infected again after successful treatment because the antibiotics do not provide lasting immunity. Having the infection once does not protect you from future infections. Using condoms and practicing safer sex helps prevent reinfection. Regular testing is important if you remain at risk due to sexual practices or partner status.