Vaginal or vulvar pain has many possible causes, ranging from a simple reaction to soap or laundry detergent to infections, hormonal changes, or chronic conditions. The location and type of pain, whether it’s burning, stinging, aching, or sharp, can help narrow down what’s going on. Here’s a breakdown of the most likely reasons and what to look for with each one.
Contact Dermatitis and Everyday Irritants
One of the most common and overlooked causes of vulvar pain is contact dermatitis, a skin reaction triggered by products that touch the area. Symptoms include intense itching, rawness, stinging, and burning. The list of potential irritants is long: soap, bubble bath, shampoo, laundry detergent, perfume, douches, talcum powder, dryer sheets, scented pads or panty liners, toilet paper, spermicides, tea tree oil, and underwear made of synthetic fabrics like nylon. Even dyes and food preservatives in certain products can cause a reaction.
If your pain started recently and you switched to a new soap, detergent, or brand of pads, that’s a strong clue. Removing the irritant is often enough to resolve the discomfort within a few days. Switching to fragrance-free products and cotton underwear can make a noticeable difference.
Yeast Infections and Bacterial Vaginosis
Yeast infections cause thick, white, cottage cheese-like discharge along with itching, burning, and pain, especially after intercourse. They’re one of the most frequent reasons for vaginal discomfort and can flare up after antibiotics, during pregnancy, or with hormonal shifts.
Bacterial vaginosis (BV) is different. The discharge tends to be thin, grayish, and heavier than usual, with a noticeable fishy odor that’s strongest after a period or after sex. BV can cause irritation, but it typically does not cause significant pain. If you’re experiencing real soreness or burning rather than just mild irritation, a yeast infection or another cause is more likely.
Sexually Transmitted Infections
Several STIs can cause vaginal or vulvar pain, each with a slightly different timeline and set of symptoms.
- Chlamydia can cause pain during sex, with symptoms appearing 5 to 14 days after exposure. Many people have no symptoms at all, which is why routine screening matters.
- Gonorrhea tends to cause pelvic or lower abdominal pain, with symptoms appearing within about 10 days of exposure.
- Trichomoniasis causes itching, burning, soreness, and pain during sex, with symptoms showing up 5 to 28 days after exposure.
- Genital herpes causes pain, itching, and tenderness in the genital area, often with visible sores. Symptoms tend to appear within 12 days of exposure and last until the outbreak clears.
If your pain came on within a few weeks of a new sexual contact, or if you notice unusual discharge, sores, or burning when you urinate, getting tested is the clearest next step.
Pain During or After Sex
Pain with penetration has two broad patterns. Entry pain, felt right at the vaginal opening, is frequently caused by insufficient lubrication. This can happen from not enough arousal, but also from medications that reduce lubrication, including antidepressants, blood pressure medications, antihistamines, and some birth control pills. A drop in estrogen after menopause, childbirth, or during breastfeeding also reduces natural lubrication significantly.
Deep pain, felt further inside during or after sex, points to different causes. Endometriosis, ovarian cysts, uterine fibroids, pelvic inflammatory disease, and even irritable bowel syndrome can all produce deep pelvic pain that worsens with certain positions. Scarring from pelvic surgery or cancer treatments can also be a factor.
Emotional factors play a real role too. Anxiety, depression, body image concerns, and a history of sexual trauma can all increase muscle tension and reduce arousal, creating a cycle where pain leads to fear of more pain, which leads to more tension and more pain.
Hormonal Changes and Vaginal Atrophy
Estrogen keeps vaginal tissue thick, elastic, and lubricated. When estrogen drops, during menopause, after childbirth, while breastfeeding, or on certain medications, the vaginal lining becomes thinner, drier, and less stretchy. The vaginal canal can also narrow and shorten. This condition, sometimes called vaginal atrophy, makes the tissue more fragile and easily irritated, causing burning, itching, spotting, and pain during sex even without an infection or injury present.
This isn’t something that only affects older women. Anyone experiencing hormonal shifts, including people on certain hormonal contraceptives or those who’ve recently given birth, can develop these symptoms.
Vulvodynia: Pain Without a Clear Cause
If you’ve been dealing with vulvar burning or pain for three months or longer and no infection, skin condition, or other identifiable cause has been found, the diagnosis may be vulvodynia. This is defined as persistent vulvar pain without a visible explanation. The pain is most often described as burning, and it can be constant or triggered by touch, sitting, or wearing tight clothing.
Vulvodynia is classified by where the pain is (localized to one spot or spread across the vulva), whether it’s provoked by contact or happens spontaneously, and whether the pattern is constant or comes and goes. A clinician typically maps the painful areas using a cotton swab to pinpoint the location and severity.
Treatment usually involves a combination of approaches. Pelvic floor physical therapy helps because many people with vulvodynia carry significant tension in the muscles that support the bladder, uterus, and bowel. A physical therapist can guide you through stretching and relaxation exercises, and may recommend vaginal dilators for home use. Certain medications originally developed for nerve pain or depression can help when applied as topical creams or taken at low doses. Cognitive behavioral therapy teaches coping strategies and can break the cycle of pain and anxiety. Some people also find relief from acupuncture.
Other Skin Conditions
Several skin conditions specifically affect the vulva. Folliculitis, small red bumps caused by bacteria infecting hair follicles, is common on the outer lips and often results from shaving, waxing, or friction from tight clothing. It usually resolves on its own but can be tender.
Lichen sclerosus causes white patches or bumps on the vulvar skin, sometimes with dark purple discoloration. Lichen planus, more commonly seen in the mouth, can also affect the genitals, causing white streaks, dark pink bumps, soreness, burning, and abnormal discharge. Both conditions are chronic and benefit from medical treatment to manage symptoms and prevent tissue changes over time.
Signs That Need Prompt Attention
Most causes of vaginal pain are treatable and not emergencies, but certain combinations of symptoms point to pelvic inflammatory disease (PID), a serious infection of the reproductive organs that can cause lasting damage if untreated. Watch for lower abdominal pain combined with fever, foul-smelling discharge, pain or bleeding during sex, burning when you urinate, or bleeding between periods. PID is typically caused by untreated STIs like chlamydia or gonorrhea spreading upward from the cervix.
Simple Relief While You Figure It Out
While identifying the underlying cause, a few steps can reduce discomfort. Soaking in a lukewarm sitz bath with Epsom salts or colloidal oatmeal for 5 to 10 minutes, two to three times a day, can ease burning and irritation. Avoid hot baths and hot tubs, which can worsen inflammation. Stop using any scented products near the area, including scented soap, feminine sprays, and perfumed toilet paper. Wear loose cotton underwear and avoid sitting for long stretches if pressure makes the pain worse.
If the pain is new and mild, these measures may be enough. If it persists beyond a week or two, worsens, or comes with discharge, fever, or sores, getting an exam will help rule out infection and point toward the right treatment.