Vulvar cancer is cancer that starts in the vulva. Vulvar cancer most often affects the labia, the folds of skin outside the vagina. In some cases, vulvar cancer starts on the clitoris or in glands on the sides of the vaginal opening.
Most vulvar cancers begin in skin cells called squamous cells. Other types of cancers found on the vulva are:
- Basal cell carcinoma
Vulvar cancer is rare. Risk factors include:
- Human papilloma virus (HPV, or genital warts) infection in women under age 50
- Chronic skin changes, such as lichen sclerosis or squamous hyperplasia in women over age 50
- History of cervical cancer or vaginal cancer
Women with a condition called vulvar intraepithelial neoplasia (VIN) have a high risk of developing vulvar cancer that spreads. Most cases of VIN, though, never lead to cancer.
Other possible risk factors may include:
- History of abnormal Pap smears
- Having many sexual partners
- Having first sexual intercourse at 16 or younger
Women with this condition will often have itching around the vagina for years. They may have used different skin creams. They may also have bleeding.
Other skin changes that may occur around the vulva:
- Mole or freckle, which may be pink, red, white, or gray
- Skin thickening or lump
- Skin sore (ulcer)
- Pain or burning with urination
- Pain with intercourse
- Unusual odor
Some women with vulvar cancer have no symptoms.
Exams and Tests
The following tests are used to diagnose vulvar cancer:
- CT scan or MRI of the pelvis to look for cancer spread
- Pelvic examination to look for any skin changes
- Pelvic ultrasound
Treatment involves surgery to remove the cancer cells. If the tumor is large (more than 2 cm) or has grown deeply into the skin, the lymph nodes in the groin area may also be removed.
Radiation, with or without chemotherapy, may be used to treat advanced tumors or vulvar cancer that comes back.
Most women with vulvar cancer who are diagnosed and treated at an early stage do well. But a woman’s outcome depends on:
- The size of the tumor
- The type of vulvar cancer
- Whether the cancer has spread
The cancer commonly comes back at or near the site of the original tumor.
Complications may include:
- Spread of the cancer to other areas of the body
- Side effects of radiation, surgery, or chemotherapy
When to Contact a Medical Professional
Call your healthcare provider if you have any of these symptoms for more than 2 weeks:
- Local irritation
- Skin color change
- Sore on the vulva
Practicing safer sex may decrease your risk for vulvar cancer. This includes using condoms to protect against sexually transmitted infections (STIs).
A vaccine is available to protect against certain forms of HPV infection. The vaccine is approved to prevent cervical cancer and genital warts. It may help prevent other cancers linked to HPV, such as vulvar cancer. The vaccine is given to young girls before they become sexually active, and to adolescents and women up to age 26.
Routine pelvic exams can help diagnose vulvar cancer at an earlier stage. Earlier diagnosis improves your chances that treatment will be successful.