Lymphogranuloma venereum (LGV) is a chronic (long-term) infection of the lymphatic system caused by three different types of the bacterium Chlamydia trachomatis. The bacteria spread through sexual contact. The infection is not caused by the same bacteria that cause genital chlamydia.LGV is more common in Central and South America than in North America. Every year, a few hundred cases of LGV are diagnosed in the United States. However, the actual number of infections is unknown.LGV is more common in men than women. The main risk factor is being HIV-positive.
Symptoms
Symptoms of LGV can begin a few days to a month after coming in contact with the bacteria. Symptoms include:
- Blood or pus from the rectum (blood in the stools)
- Drainage through the skin from lymph nodes in the groin
- Painful bowel movements (tenesmus)
- Small painless sore on the male genitals or in the female genital tract
- Swelling and redness of the skin in the groin area
- Swelling of the labia
- Swollen groin lymph nodes on one or both sides; it may also affect lymph nodes around the rectum in people who have anal intercourse
The infection can cause diarrhea and lower abdominal pain.
Exams and Tests
Your doctor or nurse will examine you and ask questions about your medical and sexual history. Always tell your health care provider if you had sexual contact with someone who has had lymphogranuloma venereum.
A physical exam may show:
- An oozing, abnormal connection (fisula) in the rectal area
- A sore on the genitals
- Drainage through the skin from lymph nodes in the groin
- Swelling of the vulva or labia in women
- Swollen lymph nodes in the groin (inguinal lymphadenopathy)
Tests may include:
- Biopsy of the lymph node
- Blood test for the bacteria that causes LGV
- Laboratory test to detect chlamydia
Treatment
Antibiotics that are commonly prescribed to treat LGV include tetracycline, doxycycline, erythromycin, and azithromycin.
Outlook (Prognosis)
With treatment, the outlook is good.
Possible Complications
- Abnormal connections between the rectum and vagina
- Brain inflammation (very rare)
- Infections in the joints, eyes, heart, or liver
- Long-term inflammation and swelling of the genitals
- Scarring and narrowing of the rectum
Complications can occur many years after you are first infected.
When to Contact a Medical Professional
Call your health care provider if:
- You have been in contact with someone who may a sexually transmitted infection, including LGV
- You develop symptoms of LGV
Prevention
Not having any sexual activity is the only way to prevent a sexually transmitted infection. Safer sex behaviors may reduce the risk.
The proper use of condoms, either the male or female type, greatly decreases the risk of catching a sexually transmitted infection. You need to wear the condom from the beginning to the end of each sexual activity.
Alternative Names
LGV; Lymphogranuloma inguinale; Lymphopathia venereum
Where Can I Get More Information?
Division of STD Prevention (DSTDP)
Centers for Disease Control and Prevention
Personal health inquiries and information about STDs:
CDC-INFO Contact Center
1-800-CDC-INFO (1-800-232-4636)
Email: cdcinfo@cdc.gov
Resources:
CDC National Prevention Information Network Web Site (NPIN)
P.O. Box 6003
Rockville, MD 20849-6003
E-mail: info@cdcnpin.org
American Sexual Health Association Web Site (ASHA)
P. O. Box 13827
Research Triangle Park, NC 27709-3827
1-800-783-9877
