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What is vaginal & vulvar cancer?
Vaginal and vulvar cancers are uncommon gynecologic cancers that begin in the lower female genital tract — the vulva is the external genital area, and the vagina is the canal leading from it to the cervix. Most are squamous cell cancers that start in the skin-like lining, and many are linked to the human papillomavirus (HPV), the same virus involved in cervical cancer, which is why HPV vaccination and screening help prevent them. They often begin as a pre-cancerous change that can be found and treated before it becomes invasive. Warning signs include a lump, sore, itching, bleeding, or a change in the skin that doesn't heal, so reporting these to a doctor matters. When caught early these cancers are very treatable, and care is tailored to cure the cancer while preserving as much normal function and appearance as possible. Treatment combines surgery, radiation, and sometimes chemotherapy, chosen by a specialized gynecologic-oncology team.
The main types
Doctors group vaginal & vulvar cancer by where it starts and how it behaves:
| Type | What it means, simply |
|---|---|
| Squamous cell carcinoma | By far the most common type for both vulvar and vaginal cancer, arising from the flat lining cells; frequently linked to HPV. |
| Adenocarcinoma | A less common type starting in gland cells; clear-cell adenocarcinoma of the vagina is a rare form with specific risk factors. |
| Melanoma | An uncommon but important type arising from pigment cells of the vulva or vagina, treated differently from squamous cancers. |
| Pre-invasive changes (VIN / VAIN) | Pre-cancerous changes in the vulva (VIN) or vagina (VAIN) that can be treated before they become invasive cancer. |
Staging, in plain terms
Like other gynecologic cancers, vaginal and vulvar cancers are staged with the FIGO system (alongside TNM). Staging looks at how big the tumor is and how deeply it has grown, whether nearby lymph nodes in the groin or pelvis are involved, and whether it has spread to distant organs. For vulvar cancer in particular, whether the lymph nodes in the groin contain cancer is one of the most important factors guiding treatment and outlook.
| FIGO and AJCC TNM (gynecologic staging) | What it generally means |
|---|---|
| Stage I | A tumor confined to the vulva or vagina; often cured with surgery or radiation, with treatment tailored to preserve function. |
| Stage II | The tumor has grown into nearby tissues but not the lymph nodes; treated with surgery, radiation, or a combination. |
| Stage III | Spread to lymph nodes in the groin or pelvis, or to adjacent structures; treatment usually combines radiation with chemotherapy, sometimes with surgery. |
| Stage IV | Spread to the bladder or rectum lining or to distant organs; care combines radiation, chemotherapy, and supportive treatment to control disease and symptoms. |
The standard of care
Vaginal & Vulvar Cancer is almost always treated by a team that may include a surgeon, a medical oncologist, and a radiation oncologist, combining therapies for the best result. The usual building blocks are:
Surgery
Removing the tumor — with as little disruption as possible to surrounding tissue — is a main treatment for early disease, sometimes including checking the groin lymph nodes.
Radiation therapy
Radiation can cure many of these cancers, treat the lymph node areas, and serve as an organ-preserving alternative to extensive surgery; it's often combined with chemotherapy.
Chemoradiation
For larger or node-positive tumors, low-dose chemotherapy given alongside radiation makes the radiation more effective and improves cure rates.
Sentinel lymph node evaluation
For vulvar cancer, checking the first ('sentinel') lymph node helps decide whether the groin nodes need fuller treatment, sparing many women more extensive surgery.
How radiation treatment works
Radiation uses focused high-energy x-rays to damage the DNA of cancer cells so they stop dividing and the tumor shrinks. For vaginal and vulvar cancers, radiation is valuable both as a curative treatment and as a way to preserve function — sparing women extensive surgery to a sensitive area when possible. Treatment may be delivered from outside the body (external-beam radiation), precisely shaped to cover the tumor and at-risk lymph nodes while protecting the bladder, rectum, and healthy skin, or from a small source placed right at the tumor (brachytherapy), which concentrates a high dose exactly where it's needed. Radiation is frequently paired with low-dose chemotherapy, which makes the cancer cells more sensitive to it and improves cure rates. Treatments are painless and given over a series of sessions. Side effects depend on the area treated and are usually temporary, such as skin irritation, fatigue, or local soreness, and the care team takes specific steps to protect comfort and function.
The main ways radiation is delivered for vaginal & vulvar cancer:
External-beam radiation
Precisely shaped radiation from outside the body treats the tumor and, when needed, the lymph node areas in the groin and pelvis, using modern techniques that reduce dose to the bladder, bowel, and skin.
Brachytherapy
Radiation delivered from a source placed right at or near the tumor concentrates a high dose exactly where it's needed while sparing surrounding tissue — often used to boost the main tumor site, especially for vaginal cancer.
Chemoradiation
Radiation combined with low-dose chemotherapy treats larger tumors or involved lymph nodes, improving the chance of cure while often preserving the organ.
Latest studies shaping care
Care keeps improving — often toward getting the same excellent results with less burden on patients. A few developments:
Chemoradiation improves results: Adding chemotherapy to radiation improves cure rates for larger and node-positive vulvar and vaginal cancers, mirroring the success of this approach in cervical cancer.[1]
GOG and cooperative-group gynecologic trials
Sentinel node biopsy spares surgery: Checking the sentinel lymph node in early vulvar cancer safely avoids removing all groin nodes in many women, greatly reducing side effects like leg swelling.[2]
GROINSS-V studies, Lancet Oncology
HPV vaccination prevents disease: HPV vaccination prevents the infections that cause most vaginal and vulvar squamous cancers, offering true prevention alongside earlier detection of pre-cancers.[3]
Population HPV-vaccine outcome studies
Common questions
Are these cancers related to HPV? Many are. The human papillomavirus causes a large share of vulvar and vaginal squamous cancers, the same virus involved in cervical cancer. That's why HPV vaccination helps prevent them and why screening can catch pre-cancerous changes early, before they become invasive.
Will treatment affect sexual function? Preserving function and quality of life is a central goal of modern treatment. Radiation can sometimes avoid extensive surgery to this sensitive area, and care teams use specific techniques and supportive measures to protect comfort and function. These concerns are important and appropriate to discuss openly with your team.
Can radiation cure these cancers without surgery? In many cases, yes. Radiation — often combined with chemotherapy — can cure vaginal and vulvar cancers and is sometimes chosen specifically to preserve the organ and avoid major surgery. The best approach depends on the tumor's size, location, and stage, which your gynecologic-oncology team will weigh with you.
References
Numbered sources for the studies cited above. Links open the primary publication on PubMed or the publisher’s site.