Burning in the genital area is most commonly caused by an infection, a chemical irritant, or a urinary tract issue. The sensation can range from a mild sting during urination to a persistent raw feeling on the skin, and the cause usually depends on exactly where and when the burning occurs. Most causes are treatable and not dangerous, but identifying the right one matters because the treatments differ significantly.
Yeast Infections vs. Bacterial Vaginosis
These two conditions are the most common culprits for vaginal discomfort, and they’re frequently confused with each other. About 75% of women experience a yeast infection at least once in their lifetime, and bacterial vaginosis (BV) affects roughly 23% of women at any given time. Despite how common both are, they feel quite different and require completely different treatments.
A yeast infection causes thick, white discharge with a cottage cheese-like texture, usually with no noticeable odor. It typically causes itching, particularly in younger women, and can include a burning sensation, especially during urination. BV, on the other hand, produces thin gray or yellow discharge with a strong, fishy odor. BV generally does not cause itching or burning at all. If you’re experiencing burning with thick white discharge, a yeast infection is the more likely explanation. If you’re noticing an odor but no real burning, BV is more probable.
This distinction matters because over-the-counter antifungal treatments work for yeast infections but do nothing for BV, which requires a different type of medication. Using the wrong treatment can prolong your symptoms or make them worse.
Sexually Transmitted Infections
Several STIs cause burning as an early symptom, and some produce very few other signs, which makes them easy to overlook or attribute to something else.
- Chlamydia can cause painful, burning urination. Symptoms typically start 5 to 14 days after exposure, but many people have no symptoms at all.
- Gonorrhea also causes burning during urination. Symptoms in women tend to appear within 10 days of exposure, while men often notice symptoms within five days.
- Trichomoniasis causes vaginal itching, burning, soreness, and irritation. Symptoms can appear anywhere from 5 to 28 days after exposure.
A change in vaginal or penile discharge, especially alongside burning, can signal an STI. If you have a new sexual partner or haven’t been tested recently, STI screening is a straightforward way to rule these out. Testing usually involves a urine sample or a swab.
Chemical and Contact Irritation
The skin in the genital area is significantly thinner and more sensitive than skin elsewhere on your body. Products that don’t irritate your hands or face can cause inflammation, redness, and burning when they come into contact with this area. This is called contact dermatitis, and it’s one of the most overlooked causes of genital burning.
Common triggers include soap, bubble bath, shampoo or conditioner that runs down during a shower, scented laundry detergent, dryer sheets, deodorant, douches, talcum powder, and scented pads or panty liners. Even toilet paper with dyes or fragrances, spermicides, and underwear made of synthetic materials like nylon can cause a reaction. Tea tree oil, sometimes used as a home remedy, is itself an irritant for many people.
If the burning started recently, think about whether you’ve switched any products. Eliminating the offending product usually resolves symptoms within a few days. Switching to fragrance-free soap, unscented laundry detergent, and cotton underwear can help you figure out whether irritation is the source of the problem.
Urinary Tract Infections
One helpful clue is whether the burning happens during urination or is present all the time. A urinary tract infection (UTI) causes a burning or stinging sensation specifically when you urinate, often accompanied by a frequent urgent need to go, even when your bladder is nearly empty. The burning is internal, coming from the urethra, not the skin surface.
External burning that persists between bathroom trips points more toward a skin condition, irritant, or vaginal infection. Some people experience both simultaneously, which can make it harder to sort out. If you have fever or back pain along with burning urination, that can indicate the infection has moved to the kidneys, which needs prompt treatment.
Hormonal Changes and Vaginal Dryness
During and after menopause, dropping estrogen levels cause the vaginal lining to become thinner, drier, and less stretchy. The vaginal canal can also narrow and shorten. With less natural lubrication and a more fragile tissue lining, everyday friction from clothing or physical activity can create a persistent burning or stinging sensation. This condition, called vaginal atrophy, also shifts the vagina’s natural acid balance, making the tissue more susceptible to irritation and infection.
Burning during or after sex is a particularly common sign of this hormonal change. It’s not limited to menopause either. Breastfeeding, certain medications, and some cancer treatments can lower estrogen enough to cause the same symptoms. Vaginal moisturizers and prescription estrogen treatments applied locally can restore comfort for most people dealing with this.
Causes in Men
Men experiencing burning in the genital area most commonly have either a urinary tract infection, an STI, or balanitis. Balanitis is inflammation of the head of the penis, and its most common cause is inadequate cleaning under the foreskin. It can also result from yeast infections, STIs like gonorrhea or chlamydia, allergic reactions to soaps or chemicals, and skin conditions like eczema or psoriasis. Diabetes increases the risk of balanitis as well.
The burning from balanitis is often accompanied by redness, swelling, or a rash on the tip of the penis, and it can cause pain during urination. If the burning is only present during urination with no visible skin changes, a UTI or STI is more likely.
Chronic Skin Conditions
When genital burning persists for weeks or months without a clear infection or irritant, a chronic skin condition may be involved. Lichen sclerosus causes smooth, discolored patches of skin that may appear white or blotchy and wrinkled. The skin becomes fragile, bruises easily, and can blister or develop open sores. It affects the vulva or penis and can lead to scarring over time, including painful sex and, in rare cases, an increased risk of skin cancer in the affected area.
Eczema and psoriasis can also affect the genital region, causing persistent itching, burning, and flaking. These conditions require specific treatments and won’t respond to antifungal creams or antibiotics.
How the Cause Gets Identified
If the burning doesn’t resolve within about a week of removing potential irritants, or if it came with a fever, pelvic pain, unusual discharge, or visible sores, getting evaluated is the logical next step. A clinician will typically perform a pelvic exam or visual inspection, looking for inflammation, discharge, or skin changes. They may collect a swab of any discharge for lab testing to identify a specific infection, and they may test the vaginal pH. An elevated pH can point toward bacterial vaginosis or trichomoniasis, while a normal pH is more consistent with a yeast infection.
For burning that’s isolated to urination, a urine test can quickly identify a UTI or screen for STIs like chlamydia and gonorrhea. The whole process is usually straightforward, and most causes of genital burning resolve completely with the right treatment, often within days to a couple of weeks.