Vaginal pain has dozens of possible causes, ranging from common infections that clear up with treatment to chronic conditions that take longer to manage. The pain might be constant or only show up during specific activities like sex, sitting, or urinating. Understanding the pattern of your pain, along with any other symptoms, is the most useful starting point for narrowing down what’s behind it.
Infections
Infections are among the most common causes of vaginal pain, and they often come with other telltale signs that help distinguish one from another.
Yeast infections produce thick, white discharge along with intense itching, burning, and soreness. The pain tends to be external, concentrated around the vaginal opening and vulva, and it typically worsens with urination or sex.
Bacterial vaginosis (BV) causes a thin white or gray discharge with a strong fishy smell, especially after sex. Pain from BV is usually milder, more of a burning or irritation than sharp pain, and some people with BV have no symptoms at all.
Trichomoniasis is a sexually transmitted infection that about 70% of people carry without knowing it. When it does cause symptoms, they range from mild irritation to severe inflammation, with itching, burning, redness, and a thin yellowish or greenish discharge. Sex often becomes uncomfortable or unpleasant.
Chlamydia and gonorrhea can also cause vaginal pain, burning during urination, and unusual discharge. These infections frequently produce no obvious symptoms in the early stages, which is why routine screening matters if you have new or multiple sexual partners.
Low Estrogen and Vaginal Atrophy
When estrogen levels drop, the vaginal lining becomes thinner, drier, less elastic, and more fragile. This condition, called genitourinary syndrome of menopause, is one of the most common causes of vaginal pain in people over 50, though it can also affect younger people who are breastfeeding, taking certain medications, or have had their ovaries removed.
The vaginal canal can actually shorten and tighten as tissue thins out. That leads to dryness, burning, itching, and pain during sex from reduced lubrication. Light bleeding after intercourse is common. The shift in vaginal acidity also makes infections more likely, which can layer additional pain on top of the dryness and irritation.
Pelvic Floor Muscle Tension
The pelvic floor is a group of muscles that supports your bladder, uterus, and rectum. When these muscles get stuck in a state of constant contraction, a condition called hypertonic pelvic floor, they can’t relax or coordinate properly. The result is pain that may be constant or may flare during specific activities like sex, bowel movements, or prolonged sitting.
This is a frequently overlooked cause of vaginal pain because there’s no visible inflammation or infection to find on a standard exam. The pain can feel deep and aching, or it can localize to a specific area like the vaginal opening or bladder. Pelvic floor physical therapy is the primary treatment, and it involves learning to release and retrain these muscles over a series of sessions.
Vulvodynia
Vulvodynia is chronic vulvar pain lasting at least three months with no identifiable cause. It affects an estimated 10% to 28% of people of reproductive age, making it far more common than most people realize. The pain can be burning, stinging, raw, or throbbing, and it may be constant or triggered only by touch or pressure.
Some people feel the pain specifically at the vaginal opening (called provoked vestibulodynia), while others experience it across a broader area. Vulvodynia is a diagnosis of exclusion, meaning it’s what remains after infections, skin conditions, and other identifiable causes have been ruled out. Treatment usually involves a combination of approaches: topical treatments, pelvic floor therapy, and sometimes nerve-targeting medications to reduce pain signaling.
Vaginismus
Vaginismus involves involuntary spasms of the pelvic floor muscles that make vaginal penetration painful or impossible. It can be primary, meaning it’s been present since the first attempt at penetration, or secondary, developing later in life after a period of pain-free sex. Secondary vaginismus sometimes develops as a response to another condition like vulvodynia.
The key distinction from other causes is the muscle spasm itself. The pain isn’t coming from tissue damage or infection but from muscles clenching reflexively. This creates a cycle where the anticipation of pain triggers more clenching, which causes more pain. Treatment centers on pelvic floor therapy and gradual desensitization, often with the use of dilators to help retrain the muscle response over time.
Skin Conditions
Dermatological conditions can affect vulvar and vaginal skin just like skin anywhere else on your body, but they’re often missed or misdiagnosed because people are hesitant to bring them up.
Lichen sclerosus causes smooth, discolored patches of skin that become thin and fragile. Symptoms include itching, soreness, burning, easy bruising, and painful sex. The skin can blister or develop open sores in more advanced cases. It’s a chronic condition that requires ongoing management to prevent scarring and tissue changes.
Lichen planus is a related inflammatory condition that can affect the vaginal lining directly, causing erosions, burning, and pain. Both conditions are diagnosed through visual examination and sometimes biopsy, and both respond to treatments that reduce the inflammatory response in the skin.
Endometriosis and Deep Pain
Endometriosis can cause deep vaginal or pelvic pain, particularly during sex. This deep pain, called deep dyspareunia, has a more complex mechanism than you might expect. It isn’t solely caused by the endometrial tissue growing in the wrong places. Research has shown that bladder and pelvic floor tenderness contribute significantly to pain severity in people with endometriosis, independent of how advanced the disease is. Women with both endometriosis and pelvic floor tenderness were roughly twice as likely to have more severe deep pain during sex compared to those without pelvic floor involvement.
This matters practically because treating the endometriosis alone may not fully resolve vaginal pain. Addressing the pelvic floor component, through physical therapy or other targeted approaches, can make a meaningful difference in pain levels.
Physical Trauma and Postpartum Pain
Vaginal pain after childbirth is expected, especially after a vaginal delivery involving tearing or an episiotomy. The entire perineal area (the tissue between the vagina and anus) can remain sore, swollen, and tender for weeks. Most soreness from an uncomplicated vaginal delivery resolves within a few weeks, though deeper tears or surgical repairs take longer.
Beyond childbirth, vaginal pain can result from injury during sex (particularly without adequate lubrication), from surgical procedures like biopsies or hysterectomy, or from irritation caused by tampons, menstrual cups, or foreign objects. Pain from physical causes typically has a clear timeline tied to the event, which helps distinguish it from chronic conditions.
Patterns Worth Paying Attention To
The character of your pain offers real diagnostic clues. Pain only during sex points toward low estrogen, vaginismus, or endometriosis. Burning and itching with discharge suggests an infection. Constant soreness without visible changes may indicate vulvodynia or pelvic floor tension. Pain that worsens with urination could involve the bladder, an infection, or vaginal atrophy.
Certain combinations of symptoms warrant prompt evaluation: fever or chills alongside vaginal pain, pelvic pain that’s worsening, unusual bleeding, or symptoms that persist after over-the-counter treatment. A new sexual partner combined with pain and discharge raises the possibility of an STI that needs testing, since most STIs can’t be diagnosed based on symptoms alone.