Vaginal pain has many possible causes, ranging from common infections that clear up quickly to chronic conditions that require longer-term management. About 4% of women experience chronic vulvar pain at any given time, but short-term vaginal pain from treatable causes is far more common. Understanding the type of pain you’re feeling, where exactly it’s located, and what triggers it can help narrow down what’s going on.
Infections
Infections are among the most frequent causes of vaginal pain and discomfort. The three most common types each produce distinct symptoms.
Yeast infections cause itching, redness, and a thick white discharge that can look like cottage cheese. The discharge usually has no smell. The vulva and vaginal opening often feel raw and irritated.
Bacterial vaginosis (BV) is less likely to cause pain directly but can produce a thin white or gray discharge with a strong fishy odor, especially after sex. Some women notice burning or irritation alongside it.
Trichomoniasis, a sexually transmitted infection, causes itching, burning, and soreness of the vagina and vulva. It can also produce a gray-green, foul-smelling discharge and burning during urination. Many people with trichomoniasis have no symptoms at all, which is also true of other STIs like chlamydia and gonorrhea that can cause vaginal and pelvic pain when they progress to pelvic inflammatory disease.
Hormonal Changes and Vaginal Dryness
When the body produces less estrogen, the vaginal lining thins, loses moisture, and becomes more fragile. This condition, called genitourinary syndrome of menopause, is one of the most common causes of vaginal pain in women during and after menopause. The vaginal canal can actually shorten and tighten, and the tissue bruises and tears more easily.
Symptoms include dryness, burning, itching, soreness, and pain during sex. Light bleeding after intercourse is common because the tissue is so delicate. But menopause isn’t the only trigger. Breastfeeding, the postpartum period, and certain hormonal medications (including some birth control) can all lower estrogen enough to cause the same changes.
Pain During Sex: Superficial vs. Deep
Pain during intercourse is one of the most common reasons people search for answers about vaginal pain, and the location of that pain matters. Superficial pain, felt at the vaginal entrance, points to different causes than deep pain felt in the pelvis.
Burning at the entrance typically comes from infections, vaginal dryness, skin conditions, or vulvodynia. Structural changes at the vaginal opening from childbirth or scarring can also make penetration painful.
Deep, aching pain during or after sex is more often linked to endometriosis (particularly when tissue grows behind the uterus), uterine fibroids, or pelvic congestion syndrome, a condition involving enlarged veins in the pelvis that’s especially common in women who have had multiple pregnancies. Adenomyosis, where tissue that normally lines the uterus grows into the uterine wall, is another cause of deep pain.
Pelvic Floor Muscle Dysfunction
The pelvic floor is a group of muscles that supports the bladder, uterus, and rectum. When these muscles become chronically tight or go into spasm, they can cause persistent vaginal and pelvic pain that’s often mistaken for other conditions.
This tightness can develop from many sources: surgical or obstetric trauma, habitual muscle clenching (like chronically holding in urine or stool), lower back injuries, poor posture, or conditions like endometriosis and irritable bowel syndrome that create ongoing pelvic inflammation. A history of sexual abuse is also associated with chronic pelvic floor tension. Pain from other conditions, like vaginal dryness or vulvodynia, can itself trigger a cycle of muscle guarding that makes the original pain worse.
Vaginismus is a related condition where the pelvic floor muscles involuntarily contract during attempted vaginal penetration, making it painful or impossible. It has both physical and psychological components, and anxiety, fear of pain, and past trauma can all play a role.
Skin Conditions
Several skin conditions specifically target the vulvar and vaginal area and cause significant pain. Lichen sclerosus produces patchy, thin, discolored skin that bruises and tears easily. It causes itching, soreness, and burning, and over time can lead to scarring that covers the clitoris or narrows the vaginal opening, making sex painful. Bleeding, blistering, and open sores can develop in more severe cases.
Lichen planus and psoriasis can also inflame the vaginal lining and vulvar skin. These conditions are often underdiagnosed because many women don’t think of the vulva as a place where skin diseases occur, or they feel uncomfortable bringing up the symptoms.
Vulvodynia
Vulvodynia is chronic vulvar pain lasting at least three months with no identifiable cause. It’s a diagnosis of exclusion, meaning it’s only diagnosed after infections, skin conditions, hormonal changes, and other treatable causes have been ruled out. Roughly 4% of women report chronic vulvar pain consistent with vulvodynia.
The pain can be constant or triggered by touch, such as sitting, wearing tight clothing, or attempting intercourse. Diagnosis involves a cotton swab test where a clinician gently touches different areas of the vulva and vestibule while you rate the pain at each spot. A pinprick test checks whether the nerve response is normal or heightened.
The exact cause remains unknown, but current research points to several contributing factors: an increased number of nerve fibers in the vulvar tissue, heightened nerve sensitivity, elevated inflammatory activity, pelvic floor muscle dysfunction, and possible genetic predisposition. Some researchers believe nerve injury or irritation disrupts normal pain signaling between the vulva and spinal cord.
Psychological and Emotional Factors
Pain is always a physical experience, but emotional and psychological factors can amplify it or, in some cases, be the primary driver. Anxiety, depression, post-traumatic stress disorder, body image concerns, and a history of sexual trauma are all recognized contributors to vaginal and pelvic pain. These factors can increase muscle tension, heighten nerve sensitivity, and create a feedback loop where anticipating pain makes the pain worse. Treating vaginal pain effectively often means addressing these factors alongside any physical cause.
Signs That Need Urgent Attention
Most vaginal pain is not dangerous, but certain symptoms warrant immediate medical evaluation. Sudden, severe pain with nausea or vomiting can signal ovarian torsion, where the ovary twists on itself and cuts off its blood supply. Fever or chills alongside pelvic pain may indicate a serious infection like a tubo-ovarian abscess. Dizziness, fainting, rapid heartbeat, or signs of heavy internal bleeding could point to a ruptured ovarian cyst or ectopic pregnancy. Abdominal rigidity, where your stomach muscles tense up and you can’t relax them, suggests something may have ruptured or perforated inside the abdomen.
Why Diagnosis Can Take Time
Chronic vaginal pain is notoriously difficult to pin down because so many conditions share overlapping symptoms, and multiple causes often coexist. A person might have both vaginal dryness and pelvic floor tension, or both a skin condition and vulvodynia. The American College of Obstetricians and Gynecologists acknowledges that chronic pelvic pain care is complex enough to often require a multidisciplinary team, and that treatment sometimes has to be borrowed from what works for other chronic pain conditions when direct evidence is limited. If your pain has persisted for weeks or is affecting your daily life, getting a thorough evaluation that considers all of these possibilities is the most direct path to relief.