Vaginal and vulvar burning typically comes from one of a handful of causes: an infection, an irritant touching sensitive skin, hormonal changes, or a chronic pain condition. Most cases are treatable once you know what’s behind it. The trick is narrowing it down, because the burning itself doesn’t tell you much on its own. What matters is what else is happening alongside it.
Infections That Cause Burning
Infections are the most common reason for vaginal burning, and three types account for the majority of cases. Each one produces a distinct pattern of symptoms that can help you figure out what you’re dealing with before you even see a provider.
Yeast infections cause burning along with intense itching. The hallmark is thick, white, odorless discharge, sometimes with a white coating in and around the vagina. The burning often gets worse during urination or sex. Yeast infections happen when a fungus called candida, which normally lives in the vagina in small amounts, overgrows. Antibiotics, hormonal changes, and a weakened immune system can all trigger this.
Bacterial vaginosis (BV) is the most common vaginal infection in women ages 15 to 44. It develops when the balance between helpful and harmful bacteria in the vagina shifts. The discharge is grayish, foamy, and has a fishy smell. Burning and irritation are common but tend to be milder than with yeast. BV often gets confused with yeast infections, but the smell and discharge texture are different.
Trichomoniasis is a sexually transmitted infection caused by a parasite. It produces frothy, yellow-green discharge that smells bad and may contain spots of blood. Burning, itching, and soreness are typical, along with pain during urination. Trich requires prescription treatment for both you and your sexual partner.
STIs With Burning as a Symptom
Beyond trichomoniasis, other sexually transmitted infections can cause burning. Chlamydia and gonorrhea both produce a painful, burning sensation during urination. These infections are tricky because they often cause no symptoms at all, especially in early stages. When symptoms do appear, they may also include unusual discharge or spotting between periods. Genital herpes causes burning or stinging that’s localized to sores or blisters on the vulva. The first outbreak tends to be the most painful, and burning can start before visible sores appear.
If you’re sexually active and the burning is new, STI testing is worth doing even if you don’t have other symptoms. A simple swab or urine test can rule these out.
Contact Irritants and Allergic Reactions
Vulvar skin is significantly more sensitive than skin elsewhere on the body, and a long list of everyday products can trigger burning, itching, and inflammation. This is called vulvar dermatitis, and it’s more common than most people realize.
Products that frequently cause problems include soap, bubble bath, scented laundry detergent, dryer sheets, perfume, douches, talcum powder, scented pads and tampons, spermicides, and underwear made from synthetic materials like nylon. Even some toilet paper (especially brands marketed as “ultra-soft” or “ultra-strong,” or those containing aloe) can irritate vulvar tissue. Tea tree oil, often sold as a natural remedy, is another known irritant.
The burning from contact irritation usually starts or worsens after using a specific product and improves when you stop. If you recently switched soaps, detergents, pads, or any product that touches the area, that’s a strong clue.
Hormonal Changes and Vaginal Atrophy
During menopause, estrogen levels drop. Without estrogen, the vaginal lining becomes thinner, drier, less stretchy, and more easily irritated. The vaginal canal can narrow and shorten, and the natural lubrication and acid balance change. This condition, called vaginal atrophy, makes tissue fragile and prone to burning, stinging, and discomfort during sex.
Menopause isn’t the only trigger. Breastfeeding, certain medications, and some cancer treatments can all lower estrogen enough to cause similar changes. The burning tends to be persistent rather than coming and going, and it often gets worse with friction or intercourse. Hormonal treatments, either applied locally or taken systemically, can reverse the tissue changes in most cases.
Skin Conditions Affecting the Vulva
Lichen sclerosus is a chronic skin condition that causes discolored, blotchy, or wrinkled patches on the vulva. It brings itching, soreness, burning, and fragile skin that bruises and tears easily. Painful sex and changes around the urethra are also common. The condition needs ongoing management because untreated cases can cause scarring and permanent changes to vulvar anatomy.
Lichen planus is a related inflammatory condition that can affect both the vulva and the vagina, sometimes causing erosions and scarring. Both conditions are diagnosed by visual exam and sometimes biopsy.
Vulvodynia: Burning Without a Clear Cause
If you’ve been tested for infections, checked for irritants, and ruled out skin conditions, but the burning persists for three months or longer, vulvodynia may be the explanation. It’s defined as vulvar pain, most often described as burning, that occurs without any visible findings or identifiable cause.
Vulvodynia can be localized (concentrated at the vaginal opening, often provoked by touch or pressure) or generalized (spread across the vulva, sometimes constant). Factors that may contribute include nerve injury or irritation, past vaginal infections, pelvic floor muscle dysfunction, allergies, and genetic predisposition. It’s a real, recognized condition, not something imagined, and treatment typically involves a combination of approaches including pelvic floor physical therapy, topical treatments, and nerve-targeted strategies.
How Providers Figure Out the Cause
A provider will usually start by asking about your symptoms, recent product use, and sexual history. From there, the most common test is a vaginal swab. The sample can be examined in several ways: under a microscope (called a wet mount) to look for bacteria, yeast, or parasites; with a whiff test, where a chemical is added to check for the fishy odor of BV; or by measuring the vaginal pH, since higher acidity points toward BV. PCR testing, which checks for genetic material from specific bacteria, is available but used less often because of cost.
STI screening is typically a separate swab or urine test. If infections and irritants are ruled out and the burning continues, a provider may examine the vulvar skin more closely for signs of lichen sclerosus or other dermatologic conditions.
What You Can Do Right Now
While you’re figuring out the cause, a few strategies can reduce discomfort. Baking soda soaks are one of the most effective immediate options: add 4 to 5 tablespoons to a shallow bath (or 1 to 2 teaspoons for a sitz bath) and soak for 10 minutes, up to three times a day. Use lukewarm water, not hot. If urination burns, pour lukewarm water over the vulva while you pee to dilute the urine and reduce stinging.
A thin layer of a plain skin protectant can shield irritated tissue. Good options include plain petroleum jelly, coconut oil, extra virgin olive oil, or zinc oxide ointment. Pat the area dry after bathing (or use a hair dryer on a cool setting) rather than rubbing with a towel. Witch hazel pads can also soothe irritation.
Equally important is what to avoid. Don’t use soap directly on vulvar skin. Skip bubble bath, bath salts, scented oils, hygiene sprays, adult or baby wipes, douches, and scented pads or tampons. Don’t shave or use hair removal products on irritated skin. And don’t apply over-the-counter creams or antifungal treatments until you’ve confirmed what’s causing the problem, since treating for the wrong condition can make things worse or mask symptoms that would help with diagnosis.