Pain during sex is common, and it almost always has a physical explanation. Roughly 75% of women experience it at some point, and the causes range from simple fixable issues like insufficient lubrication to underlying conditions that need medical attention. Understanding where the pain happens and what it feels like is the fastest way to narrow down what’s going on.
Where the Pain Occurs Matters
Pain during sex generally falls into two categories: pain at the entrance during penetration, or pain deeper in the pelvis. These point to very different causes, so paying attention to the location is one of the most useful things you can do before seeking help. A doctor evaluating sexual pain will typically ask exactly where it hurts, whether it happens every time, whether it occurs in all positions, and when it first started.
Causes of Pain at the Entrance
Pain that flares at the vaginal opening or vulva during initial penetration has several possible explanations. One of the most common is simply not being physically aroused enough. During arousal, blood flow to the genitals increases dramatically, and the vaginal walls produce a small amount of fluid (roughly 3 to 5 milliliters) that acts as natural lubrication. Without that process completing, the tissue stays dry and tight, and penetration creates friction that ranges from uncomfortable to genuinely painful.
Stress, anxiety, and rushing through foreplay all short-circuit this process. The nervous system plays a direct role: stress hormones keep vaginal and clitoral smooth muscle in a contracted state, which is the opposite of what needs to happen for comfortable sex. This isn’t “all in your head.” It’s a measurable vascular event that requires the right neurological signals to unfold.
Vulvodynia is another common culprit. It causes burning, stinging, or raw soreness in the vulvar tissue, particularly around the vaginal opening (a form called localized vulvodynia or vestibulodynia). The pain often flares specifically when the area is touched. Nerve irritation, past vaginal infections, inflammation, hormonal changes, and pelvic floor muscle problems can all contribute. The exact cause varies from person to person, and sometimes multiple factors overlap.
Infections also cause entry pain. A vaginal yeast infection produces itching, redness, swelling around the vulva, and sometimes small cracks in the skin. The inflammation alone makes penetration painful. Bacterial vaginosis and sexually transmitted infections can cause similar irritation.
Less obvious triggers include allergic reactions to latex condoms, spermicides, or certain lubricant ingredients. These can cause localized itching, swelling, and irritation that makes sex uncomfortable. Switching to non-latex condoms or a different lubricant sometimes resolves the problem entirely.
When Pelvic Floor Muscles Are the Problem
The pelvic floor is a group of muscles that supports the bladder, uterus, and bowel. When these muscles get stuck in a state of constant contraction, a condition called hypertonic pelvic floor, they create pain during penetration that can feel like tightness, pressure, or a burning sensation. You might also notice pain in your lower back or hips, difficulty with bowel movements, or urinary issues.
Vaginismus is a related pattern where the muscles around the vagina involuntarily spasm when penetration is attempted. It can develop on its own or as a response to previous painful experiences. The fear of pain triggers the spasm, which causes pain, which reinforces the fear. Breaking that cycle usually requires targeted treatment rather than just pushing through it.
Causes of Deep Pain During Sex
Pain felt deeper in the pelvis, particularly during thrusting, points to internal causes. Endometriosis is one of the most common. It affects about 1 in 10 women of reproductive age, and roughly half of those women experience deep pelvic pain during sex. Endometriosis occurs when tissue similar to the uterine lining grows outside the uterus, sometimes invading the walls of pelvic organs or forming adhesions that bind organs together. When deep penetration puts pressure on these areas, the result is sharp or aching pain.
Pelvic inflammatory disease, ovarian cysts, uterine fibroids, and interstitial cystitis (a chronic bladder condition) can all produce similar deep pain. The pain might vary with your menstrual cycle, show up only in certain positions, or worsen over time. Some of these conditions also cause symptoms outside of sex, like painful periods, bloating, or urinary urgency, which can help identify them.
Hormonal Changes and Vaginal Dryness
Estrogen helps maintain the vagina’s lubrication, elasticity, and tissue thickness. When estrogen drops, as it does during and after menopause, the vaginal walls thin out, lose moisture, and become inflamed. Doctors call this collection of changes genitourinary syndrome of menopause. The result is friction and irritation during sex that wasn’t there before.
Menopause isn’t the only cause. Breastfeeding, certain birth control methods, and some medications can also lower estrogen levels enough to affect vaginal tissue. The dryness tends to develop gradually, so you might not connect it to hormonal shifts right away. Over-the-counter lubricants help with the immediate friction, but they don’t address the tissue changes themselves. Prescription options that restore moisture and elasticity at the tissue level exist for more persistent cases.
How Painful Sex Is Evaluated
A medical evaluation typically starts with detailed questions: when the pain began, where exactly it occurs, whether it happens every time or only in certain situations, and whether it’s tied to specific positions or partners. Your surgical history and childbirth history are relevant too, since scar tissue and pelvic changes from delivery can contribute.
A pelvic exam lets a provider visually check for skin irritation, infection, or structural issues. They may apply gentle pressure to different areas of the vulva and pelvic muscles to locate the source of pain. A speculum exam looks at the vaginal walls, and in some cases a pelvic ultrasound helps identify deeper causes like cysts, fibroids, or endometriosis.
Treatment Options That Work
Treatment depends entirely on the cause, which is why figuring out the specific reason matters more than trying generic solutions.
For pelvic floor dysfunction and vaginismus, pelvic floor physical therapy is one of the most effective approaches. It involves working with a trained therapist who teaches muscle relaxation and coordination exercises, sometimes combined with manual therapy, biofeedback, or vaginal dilators. Research consistently shows strong results: 59 to 80% of women report improvement in pelvic pain with manual techniques. In one study, women with vestibulodynia who completed eight sessions had measurably less muscle tension, improved vaginal flexibility, and better pelvic floor function. For vaginismus specifically, internal manual techniques followed by patient education and gradual dilation exercises showed the strongest outcomes.
For infections, treating the underlying infection resolves the pain. Yeast infections clear with antifungal treatment, and bacterial or sexually transmitted infections respond to appropriate medication. The pain typically disappears once the inflammation subsides.
Hormonal vaginal dryness responds to topical estrogen therapy or moisturizers designed to restore tissue health over time. Lubricants provide immediate comfort during sex but work best alongside treatments that address the root tissue changes.
For endometriosis and other structural conditions, treatment ranges from hormonal management to surgical options depending on severity. Certain sexual positions that limit depth of penetration can reduce pain in the meantime, and open communication with a partner about what feels comfortable makes a practical difference while you’re working toward a longer-term solution.
Pain during sex is not something you need to accept as normal. Nearly every cause has a corresponding treatment, and most improve significantly once correctly identified.