Lymphogranuloma Venereum: A Comprehensive Guide
Medically reviewed by Andre Stone | MD, University of Pittsburgh School of Medicine on August 24th, 2026.
Published on April 5th, 2026. Updated on August 28th, 2026.
Key Takeaways
Lymphogranuloma venereum (LGV) is a bacterial infection spread through sexual contact
It can cause genital sores, swollen lymph nodes, and rectal symptoms.
The infection happens in three stages, with each stage having different symptoms
Early treatment with antibiotics can cure the infection completely
Without treatment, LGV can cause serious complications including permanent scarring
Overview
Lymphogranuloma venereum (LGV) is a sexually transmitted infection caused by specific strains of Chlamydia trachomatis bacteria. This condition affects the lymphatic system and genitals. LGV is more common in tropical and subtropical regions but can occur anywhere.
The infection primarily affects people who are sexually active. Men who have sex with men face higher risk, especially those with HIV. LGV can also spread through oral and anal contact. The disease progresses through three distinct stages, each with unique symptoms.
Early diagnosis and treatment are crucial for preventing long-term complications. If you may have been exposed or develop symptoms, contact a healthcare provider for advice about testing and follow-up. Many people recover completely when they start treatment early in the infection. Remove this sentence.
Symptoms & Signs
LGV symptoms develop in three stages over weeks to months. Many people don't notice early symptoms, which makes diagnosis challenging.
Primary Symptoms
Small, painless genital sore that appears 3-30 days after exposure
Swollen, painful lymph nodes in the groin area (buboes)
Rectal pain, discharge, or bleeding from anal contact
Fever, muscle aches, and general feeling of being unwell
When to Seek Care
Contact a healthcare provider if you develop any genital sores or swollen lymph nodes after sexual contact. Rectal symptoms like persistent pain or unusual discharge also need medical attention. Don't wait to see if symptoms go away on their own, because untreated LGV can lead to complications. Tell your doctor about any recent sexual activity so they can better understand your symptoms.
When to Seek Immediate Care
Get medical care right away if you have severe rectal bleeding, high fever, or lymph nodes that become very large and painful.
Causes & Risk Factors
Age
Most common in sexually active adults aged 15-40
Genetics
No genetic predisposition, but immune status affects severity
Lifestyle
Multiple sexual partners, unprotected sex, anal intercourse
Other Conditions
HIV infection, other STIs, immunocompromised state
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Diagnosis
Medical History & Physical Examination
Your doctor will ask about recent sexual activity and any symptoms you've experienced. They'll examine your genitals and feel for swollen lymph nodes in your groin and other areas. A rectal examination may be necessary if you have anal symptoms.
The physical exam focuses on identifying the characteristic swollen lymph nodes called buboes. These can be large, painful, and may feel warm to touch. Your doctor will also look for any genital sores or unusual discharge. The location and appearance of sores can help your doctor identify LGV instead of other STIs.
Diagnostic Testing
Testing usually involves nucleic acid testing of samples from the affected area, such as a rectal swab, genital sore, or lymph-node sample.
DNA testing from swabs of sores, lymph nodes, or rectal area
Urine tests to detect bacterial genetic material
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Treatment Options
LGV responds well to antibiotic treatment when caught early. The goal is to eliminate the infection and prevent complications.
Conservative Treatments
Doxycycline antibiotics taken for 21 days (first-choice treatment)
Alternative antibiotics like azithromycin for those who can't take doxycycline
Pain management with over-the-counter medications for lymph node discomfort
Advanced Treatments
Drainage of large, painful lymph nodes (buboes) when conservative treatment fails
Surgical repair of rectal strictures or fistulas in advanced cases
People with HIV or other immune system conditions should follow their clinician's treatment and follow-up plan.
Treatment success rates are very high when people take all antibiotics as directed. Avoid sexual contact until you have completed treatment and your clinician advises that it is safe to resume. Follow-up visits help check that symptoms are improving and that treatment is complete.
Living with the Condition
Daily Management Strategies
Take all prescribed antibiotics exactly as directed, even if symptoms improve. Keep the affected area clean and dry. Avoid sexual contact until your doctor confirms the infection is cleared. Notify all recent sexual partners so they can get tested and treated.
Wearing loose, breathable clothing helps reduce discomfort in the affected areas. Rest your body when you feel tired, as fighting the infection takes energy. Keep track of your symptoms to report any changes to your doctor during follow-up visits.
Exercise & Movement
Most daily activities are safe during treatment. Avoid strenuous exercise that might worsen lymph node swelling. LGV is spread through sexual contact, not through public swimming pools. Light walking and stretching can help maintain your fitness without causing harm.
Prevention
Use latex condoms consistently during all sexual activity
Limit the number of sexual partners and choose partners who get regular STI testing
Get tested regularly for STIs if you're sexually active with multiple partners
Avoid sharing sex toys or clean them thoroughly between uses
Discuss STI history with new partners before sexual activity
Communication with partners about sexual health is one of the best ways to prevent LGV. Getting yearly STI tests gives you peace of mind and catches infections early. Knowing your own STI status and staying informed helps protect both you and your partners.
Frequently Asked Questions
Yes, LGV can be completely cured with proper antibiotic treatment. Early treatment prevents long-term complications and stops the infection from progressing to advanced stages.
Most people start feeling better within a few days of starting antibiotics. Complete healing of lymph nodes may take several weeks even after the infection is cleared.
Yes, having LGV once doesn't protect you from getting it again. Previous infection doesn't create immunity, so safe sex practices remain important throughout life.
LGV is caused by the same bacteria that causes regular chlamydia, but different strains. People with one STI are more likely to have others, so comprehensive testing is recommended.
Untreated LGV can cause permanent scarring, rectal strictures, and chronic swelling. The infection can also increase your risk of getting HIV and other serious conditions.
Still have questions?
Consult with a healthcare professional for personalized advice.