Vaginal burning can come from a wide range of causes, from a simple reaction to a new soap to an infection or a hormonal shift. The sensation might be constant, come and go, or flare only during urination or sex. Figuring out the likely cause starts with paying attention to what the burning feels like, when it happens, and what other symptoms show up alongside it.
Yeast Infections and Bacterial Vaginosis
These two conditions are among the most common reasons for vaginal burning, and they’re often confused with each other. The key difference is in the discharge. A yeast infection typically produces thick, white, odorless discharge, sometimes with a white coating in and around the vagina. Bacterial vaginosis (BV), on the other hand, tends to cause grayish, foamy discharge with a fishy smell, though it’s also common for BV to produce no noticeable symptoms at all.
Both can cause itching, burning, and pain in the vulva or vagina. Yeast infections are caused by an overgrowth of fungus that normally lives in the vagina in small amounts. BV happens when the balance of bacteria shifts. They require different treatments: antifungal medication for yeast, antibiotics for BV. Using the wrong one won’t help and can make things worse, so if you’re unsure which you’re dealing with, getting tested is worth it.
Sexually Transmitted Infections
Trichomoniasis is a particularly common STI that causes genital burning, but roughly 70% of people with the infection have no symptoms at all. When it does flare up, symptoms range from mild irritation to significant inflammation, including itching, burning, redness, discomfort while urinating, and a thin discharge that may be clear, white, yellowish, or greenish with a fishy smell.
Chlamydia and gonorrhea can also cause vaginal burning, though both frequently produce no obvious symptoms in their early stages. Burning during urination, unusual discharge, and pelvic discomfort are the most common signs when symptoms do appear. Because these infections can cause serious complications if left untreated, including damage to the reproductive system, testing matters even when symptoms seem mild or intermittent.
Contact Irritants and Allergic Reactions
The vulvar skin is significantly more sensitive than skin on most other parts of the body, and it absorbs chemicals more readily. Vulvar dermatitis, a reaction to an irritating substance, is one of the most overlooked causes of burning. The list of potential triggers is long:
- Hygiene products: soap, bubble bath, shampoo, deodorant, perfume, douches, talcum powder
- Menstrual products: pads, panty liners, tampons
- Laundry products: detergent and dryer sheets
- Sexual products: spermicides, lubricants
- Fabrics: synthetic underwear materials like nylon
- Other: tea tree oil, dyes, food preservatives, nickel
The burning from contact irritation can start hours after exposure or build gradually with repeated use of a product. If your symptoms appeared around the same time you switched soaps, detergents, or underwear brands, that’s a strong clue. Eliminating the suspected product and switching to fragrance-free alternatives often resolves the problem within a few days to a couple of weeks.
Low Estrogen and Vaginal Atrophy
During and after menopause, declining estrogen levels cause the vaginal tissue to become thinner, drier, and more easily irritated. This collection of changes is called genitourinary syndrome of menopause, and it affects anywhere from 14% to 87% of postmenopausal women depending on the study. Vaginal dryness and pain during sex are the two most reported symptoms, but burning is common as well.
The same process can happen during breastfeeding, after surgical removal of the ovaries, or while taking certain medications that suppress estrogen. Unlike an infection, which tends to come on relatively quickly, hormonal burning develops gradually and worsens over time without treatment.
First-line management starts with non-hormonal lubricants during sex and long-acting vaginal moisturizers used two to three times per week. If those don’t provide enough relief, prescription options include low-dose vaginal estrogen or other hormonal therapies. These changes don’t resolve on their own after menopause, so ongoing management is usually necessary.
Inflammatory Skin Conditions
Lichen sclerosus is a chronic inflammatory condition that can affect the vulvar skin, causing smooth or blotchy discolored patches, thinning and wrinkling of the skin, soreness, burning, and intense itching. The skin becomes fragile enough to bruise or blister easily, and sex often becomes painful. It can also cause changes around the urethral opening.
Lichen planus is a related condition that can affect the vulva and vaginal canal, sometimes causing erosions or raw areas alongside burning. Both conditions are manageable with treatment but tend to be chronic, requiring ongoing care to control flares and prevent scarring.
Vulvodynia: Chronic Burning Without a Visible Cause
Some people experience persistent vulvar burning for months or years with no infection, no skin condition, and nothing visually abnormal on examination. This is vulvodynia, a pain condition defined by ongoing vulvar pain when other diagnoses have been ruled out. The burning can be constant or triggered by touch, pressure, or penetration.
Vestibulodynia is a subtype where the pain is concentrated at the vaginal opening. It’s often most noticeable during sex or tampon insertion. There’s no single test that confirms the diagnosis. Instead, a doctor makes the diagnosis by listening to your symptom description, examining the area, and ruling out infections (sometimes with swabs) or skin conditions (occasionally with a small biopsy). Treatment typically involves a combination of pelvic floor physical therapy, topical medications, and sometimes nerve-targeting therapies.
Urinary Tract Infections
A UTI can produce a burning sensation that feels like it’s coming from the vagina when it’s actually originating in the urethra. Because the urethra sits right in front of the vaginal opening, the two are easy to confuse. If the burning is most intense during or right after urination and comes with frequent urges to pee or cloudy urine, a UTI is a likely cause.
Reducing Irritation at Home
While you’re figuring out what’s causing the burning, a few simple steps can keep the area from getting more irritated. Pouring lukewarm water over the vulva while you urinate can ease stinging. Soaking in a lukewarm (not hot) bath with four to five tablespoons of baking soda for 10 minutes, up to three times a day, can calm itching and burning. If you’re using a sitz bath, one to two teaspoons is enough.
Switch to white, unscented toilet paper and avoid versions labeled “ultra-soft” or “ultra-strong,” as well as any toilet paper containing aloe. Don’t use hygiene sprays, perfumes, douches, or adult or baby wipes on the vulvar area. WaterWipes, which contain minimal ingredients, are a safer alternative if you need a wipe. Witch hazel pads (like Tucks) are also considered safe for external use. Avoid shaving or using hair removal products on irritated skin, as this adds further trauma to already sensitive tissue.
These measures help manage discomfort, but they aren’t a substitute for identifying the underlying cause. Burning that persists for more than a few days, comes with unusual discharge, or keeps returning after clearing up warrants a proper evaluation.