By Kareeb Wellness · Published 1 June 2026

Why does sex hurt?

Pain during intercourse is common. It is not normal. And you absolutely do not have to live with it.

Up to 75% of women experience painful intercourse (dyspareunia) at some point. For some it's occasional — a rough position, not enough lubrication. For others it's persistent, affecting every intimate encounter. The silence around this is loud: many people assume pain is just part of sex, something to endure. It isn't.

Pain during sex has identifiable causes, effective treatments, and — critically — it is not your fault. Here's what you need to know.

Types of pain

Where and when the pain happens tells you a lot about the cause. Entry pain (pain at the vaginal opening during penetration) suggests a different set of causes than deep pain (pain deep inside during thrusting). Pain that happens every time points toward a physical or structural cause. Pain that comes and goes may relate to cycle, stress, or position.

Pay attention to the pattern. It's the single most useful information you can bring to a healthcare provider.

Common physical causes

Vaginismus. This is an involuntary tightening of the pelvic floor muscles surrounding the vagina. It can make penetration extremely painful or impossible. Vaginismus is not a choice or a "mental block" — it's a physical reflex, like your knee jerking when tapped. It's also highly treatable with pelvic floor physiotherapy, dilators, and relaxation techniques.

Endometriosis. Tissue similar to the uterine lining grows outside the uterus — on ovaries, fallopian tubes, the bowel, or the bladder. During sex, deep penetration puts pressure on these growths, causing sharp pain. Endometriosis affects roughly 1 in 10 women of reproductive age. It's underdiagnosed, often for years. If you experience deep pain during sex plus painful periods and pelvic pain, it's worth investigating.

Pelvic floor dysfunction. The pelvic floor muscles can be too tight (hypertonic), too weak, or uncoordinated. Hypertonic pelvic floor causes pain during penetration and can also cause urinary urgency and lower back pain. Pelvic floor physiotherapy is the gold-standard treatment.

Insufficient lubrication. The most overlooked cause. Lubrication decreases with age, hormonal changes (birth control, postpartum, perimenopause), certain medications (antihistamines, SSRIs), and simply not enough arousal time. The fix is simple: use lubricant. Water-based, silicone-based, or hybrid — any good lubricant is better than none. This is not a failure; it's basic physiology.

Infections. Yeast infections, bacterial vaginosis, urinary tract infections, and sexually transmitted infections can all cause inflammation that makes penetration painful. These are treatable — see a healthcare provider for diagnosis.

Ovarian cysts and fibroids. Large cysts or fibroids can cause deep pain during sex by putting pressure on surrounding structures. Ultrasound imaging can identify these.

Interstitial cystitis. A chronic bladder condition that causes pelvic pressure and pain, especially during or after sex. Often misdiagnosed as recurrent UTIs.

Scar tissue. From childbirth (episiotomy, tearing, C-section), surgery, or pelvic injury. Scar tissue can be less flexible than surrounding tissue, causing pulling or pain during movement.

Psychological and relational factors

Anxiety and anticipation. If you expect pain, your body prepares for it — by tensing the pelvic floor, reducing natural lubrication, and narrowing the vaginal canal. This makes penetration more painful, confirming the expectation. The cycle can be broken, but it requires addressing both the physical and mental components together.

Trauma history. Sexual trauma fundamentally changes how the nervous system responds to intimate touch. The body may go into protective mode — tightening, numbing, dissociating — during sex. Trauma-informed therapy, somatic experiencing, and trauma-sensitive pelvic floor work can help.

Relationship dynamics. Feeling pressured, unheard, or disconnected from a partner can make it difficult to relax into intimacy. Desire and safety are linked. If you don't feel safe (emotionally or physically), your body will respond accordingly.

What actually helps

See the right provider. A gynecologist who specializes in pelvic pain, a pelvic floor physiotherapist, or a sexual medicine specialist. Not every doctor is trained in this — seek someone who is.

Use lubricant. Generously. Every time. This alone resolves a surprising percentage of entry pain.

Pelvic floor physiotherapy. This is not a luxury. For vaginismus, hypertonic pelvic floor, and postpartum pain, it is the most effective intervention available. Internally and externally, a trained physiotherapist can help retrain your pelvic floor muscles.

Dilator therapy. Graduated vaginal dilators, used consistently with physiotherapy guidance, can help desensitize and retrain the pelvic floor. Go at your own pace — there is no race.

Change the frame. Take penetration off the table. Rebuild intimacy through non-demand touch, outercourse, and pleasure that has no goal. When the pressure of penetration is removed, the pelvic floor often begins to relax on its own.

Mindfulness and breathwork. Diaphragmatic breathing activates the parasympathetic nervous system and directly relaxes the pelvic floor. Combine with mindful body scans to reconnect with the body without agenda.

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