Pain during sex is common, but it isn’t something you should accept as normal. About three out of four women experience it at least once in their lives, and 10% to 20% deal with it on a chronic basis. Between 1% and 5% of men report it too. The fact that it’s widespread doesn’t mean it’s inevitable or untreatable. In most cases, there’s an identifiable cause and a clear path to feeling better.
Why It Happens: The Most Common Causes
Sexual pain falls into two broad categories: pain at the entrance (superficial) and pain deeper inside the pelvis. These tend to have different causes, and knowing where the pain is located helps narrow down what’s going on.
Superficial pain, felt at or near the opening of the vagina, is often related to insufficient lubrication, skin conditions, or involuntary muscle tightening. Deeper pain during penetration can signal conditions like endometriosis, where tissue similar to the uterine lining grows in other parts of the pelvis, or adenomyosis, where that tissue grows into the muscular wall of the uterus itself. Ovarian cysts, pelvic inflammatory disease, and fibroids can also cause deep pain.
For men, pain during sex is less frequently discussed but still real. Common causes include foreskin tightness (phimosis), inflammation of the head of the penis, curvature from scar tissue buildup, prostate inflammation, and pain during or after ejaculation. Skin conditions on the penis can also make intercourse painful.
Hormonal Changes and Vaginal Dryness
Falling estrogen levels, particularly during and after menopause, cause the vaginal tissue to become thinner, drier, and less elastic. This is one of the most common reasons sex becomes painful later in life. Vaginal dryness affects 47% to 100% of postmenopausal women depending on the study, and painful sex specifically is reported by 20% to 78% of that group. But menopause isn’t the only trigger. Breastfeeding, certain birth control methods, and some medications (including antihistamines and antidepressants) can also reduce natural lubrication.
A good lubricant helps, but not all lubricants are equal. The World Health Organization recommends vaginal lubricants with a pH around 4.5 and an osmolality (a measure of concentration) below 1,200 mOsm/kg. Many popular drugstore brands exceed that osmolality threshold, which can irritate delicate tissue and actually make the problem worse. Water-based lubricants labeled “iso-osmotic” or those with lower osmolality tend to be gentler. For anal use, a slightly higher pH of 5.5 to 7 is appropriate.
Muscle Tension and the Fear-Pain Cycle
Vaginismus is a condition where the muscles around the vagina contract involuntarily when penetration is attempted. It can make sex feel impossible, not just painful. The leading explanation is that a fear of painful sex causes the pelvic floor muscles to tighten automatically, which then causes the very pain the person feared. This creates a self-reinforcing loop: fear leads to tightening, tightening leads to pain, and pain reinforces the fear.
Anxiety about sex, past trauma, and previous painful experiences can all feed into this cycle. It’s not something you’re choosing to do, and it’s not “in your head” in the dismissive sense. The muscle response is real and physical, even when the original trigger is psychological. The good news is that it responds well to treatment, which usually involves gradually retraining the pelvic floor to relax.
Skin Conditions That Cause Pain
Several skin conditions affecting the vulva can make sex painful, and they’re frequently underdiagnosed because people feel uncomfortable bringing them up. Lichen sclerosus, for example, causes smooth, discolored patches of skin in the genital area along with itching, burning, and fragile skin that bruises or tears easily. Over time, it can cause scarring that physically narrows the vaginal opening or covers the clitoris. Vestibulodynia, a type of chronic pain at the vaginal entrance, makes even light touch or pressure feel like burning or stinging.
These conditions don’t go away on their own, but they’re very manageable once diagnosed. If you notice visible skin changes, persistent itching, or burning in your genital area alongside painful sex, those clues point toward a dermatological cause worth investigating.
How Pelvic Floor Therapy Helps
Pelvic floor physical therapy is one of the most effective treatments for sexual pain, and it works for a broader range of causes than most people realize. The therapy retrains the pelvic floor muscles to relax properly, increases vaginal elasticity, improves blood flow to the area, and reduces tissue hypersensitivity. It’s hands-on, individualized work with a specialized therapist, typically over a series of sessions.
The results are encouraging. In studies of women with chronic pelvic pain, 59% to 80% reported improvement after manual therapy techniques. For painful sex specifically, a 2019 randomized trial found that women who received pelvic floor therapy had significant improvements in pain, sexual function, and overall quality of life compared to women who received general physical therapy instead. Another study found that after eight sessions, women with vestibulodynia had measurably less muscle tension, better vaginal flexibility, and reduced pain sensitivity. About 45% of women with chronic pelvic pain and painful sex reported improvement after at least 12 sessions in a separate study.
These numbers don’t mean the other half got no benefit at all. Pelvic floor therapy is often part of a broader approach that might include topical treatments, hormonal therapy, or counseling depending on the underlying cause.
What “Normal” Discomfort Actually Looks Like
There are a few situations where mild, temporary discomfort during sex is expected and not a sign of a problem. The first time having penetrative sex can involve some discomfort as tissues stretch. A new position that allows deeper penetration might cause a brief, dull ache. Sex after a long break can feel slightly uncomfortable until the body readjusts. Mild friction from insufficient lubrication is common and easily solved.
What separates these from a problem worth addressing is the pattern. Pain that happens repeatedly, gets worse over time, persists after sex ends, or makes you avoid intimacy altogether is not just “part of the deal.” Sharp, burning, or stabbing pain is never something to push through. Pain that shows up only at certain times in your menstrual cycle, or pain accompanied by bleeding, unusual discharge, or visible skin changes, points to a specific cause that can be identified and treated.
The gap between how common sexual pain is and how often people seek help for it is enormous. Many people wait years before bringing it up, often because they’ve been told it’s normal or because they feel embarrassed. Pain during sex is your body telling you something. In most cases, that something is fixable.