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Painful Sex: The Common Causes and When to Get Help
Body & Health
10 min read
Pain during sex is always information worth acting on. It is never something to simply push through.
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Pain during sex - the medical term is dyspareunia - is one of the most commonly underreported sexual health concerns, and one of the most commonly dismissed. People are told it is normal, that they need to relax more, or that things will improve over time without treatment. Sometimes they do, but often they do not, and the longer painful sex goes unaddressed the more entrenched the associated anxiety and avoidance can become. Pain during sex is never normal in the sense of being acceptable or expected. It is always a signal that something is worth investigating, and the causes range from simple and quickly resolved to conditions that benefit from specialist care.
Dyspareunia is the clinical term for persistent or recurrent pain during sexual intercourse. It can affect people of any sex and any anatomy, though it is most studied in people with vaginas, where it is estimated to affect 10 to 20 percent of the population at some point in their lives. Research by Latthe and colleagues, published in the BMJ in 2006, found that chronic pelvic pain - which frequently includes pain during sex as one component - was reported by around 15 percent of women in population surveys, making it far from rare.
The most clinically useful distinction in understanding dyspareunia is between superficial pain, which occurs at or near the vaginal opening, and deep pain, which occurs further inside during penetration. The location of pain gives important information about likely causes and appropriate investigation. Keeping track of where pain is felt, when during sexual activity it occurs, and whether it changes across the menstrual cycle gives a healthcare provider considerably more useful information than simply reporting that sex hurts.
Insufficient arousal and lubrication is the most common and most fixable cause of superficial pain during sex. The vaginal walls produce natural lubrication in response to arousal, and the vestibular bulbs of the clitoris engorge and provide further cushioning around the vaginal opening. If penetration is attempted before adequate arousal has occurred - whether because of rushing, stress, anxiety, medication effects, or hormonal factors - this natural preparation has not happened, and friction produces pain. The solution is more time for arousal, more attention to what produces arousal for that person, and, when needed, the use of additional lubrication. A water-based lubricant applied at or before penetration reduces friction and can make a substantial difference without requiring any investigation or treatment. Velvet Rituals Pure is formulated to be body-safe and effective for this purpose, and it is a sensible first step for anyone experiencing friction-related discomfort.
Vaginismus - the involuntary contraction of the pelvic floor muscles - produces superficial pain or makes penetration feel physically impossible. It is covered in detail in a separate article; briefly, it is a conditioned muscular response that is highly treatable through pelvic floor physiotherapy and graduated desensitisation work.
Vulvodynia and vestibulodynia are conditions characterised by chronic vulval pain or pain at the vaginal opening (the vestibule) that is not explained by infection, skin disease, or another identifiable condition. The pain is often burning, stinging, or irritating in character and can be provoked by touch or pressure, including during sex, or may be unprovoked and persistent. Research by Pukall and colleagues has helped establish vulvodynia as a genuine pain condition with identifiable neurological and inflammatory components, dispelling older assumptions that it was primarily psychological. It is treated through a combination of approaches including topical agents, pelvic floor physiotherapy, low-oxalate dietary approaches in some cases, and psychological support.
Skin conditions affecting the vulva can cause superficial pain during sex. Lichen sclerosus, in particular, causes thinning and fragility of the vulval skin, which can lead to small tears and significant pain during penetration. It is a chronic condition that requires medical management, typically with topical corticosteroids, and it is important not to leave it undiagnosed, as untreated lichen sclerosus can cause architectural changes to the vulva over time.
Hormonal changes that reduce oestrogen - including the perimenopause, menopause, postpartum period, and certain hormonal contraceptives - can cause vaginal atrophy, a thinning and drying of vaginal tissue that makes it more fragile and less well-lubricated. This is one of the most common and most overlooked causes of painful sex, particularly in the years around menopause, and is very effectively treated with topical oestrogen or newer preparations.
Endometriosis is one of the most significant causes of deep pain during sex, and one of the most commonly missed. It is a condition in which tissue similar to the uterine lining grows outside the uterus - on the ovaries, fallopian tubes, bowel, or other pelvic structures - and produces inflammation, scarring, and pain. Deep penetration that moves or stretches these adhesions produces pain, often concentrated behind the cervix. Endometriosis affects an estimated 10 percent of people with uteruses of reproductive age and takes an average of several years to diagnose from symptom onset, partly because deep pain during sex is so often dismissed.
Ovarian cysts can cause deep pain during sex if penetration applies pressure to an enlarged ovary. Many cysts resolve without treatment, but persistent or large cysts, and particularly those that cause ongoing pain, require medical evaluation.
Pelvic inflammatory disease (PID) is an infection of the upper reproductive tract, usually caused by sexually transmitted bacteria including chlamydia and gonorrhoea, that causes inflammation in the fallopian tubes, uterus, and surrounding structures. It produces deep pelvic pain that typically worsens during penetration, and it requires prompt antibiotic treatment to prevent complications including infertility and chronic pelvic pain.
Uterine fibroids are non-cancerous growths in the wall of the uterus that can cause deep pain during sex, particularly if they are large or positioned in ways that are affected by penetration. They are very common - estimates suggest they affect the majority of people with uteruses to some degree by middle age - but only a subset cause symptoms significant enough to require treatment.
Painful sex in people with penises receives less research attention than in people with vaginas, but it is not uncommon and has several identifiable causes.
Phimosis - a foreskin that is too tight to retract fully during erection - can cause pain during penetration or during masturbation. Mild cases are managed with topical steroid creams and stretching exercises; more severe cases may benefit from a minor surgical procedure. It is worth noting that a foreskin that does not retract fully when flaccid is not always problematic; it only becomes a clinical concern if it causes pain or difficulty during sexual activity.
Prostatitis, inflammation of the prostate gland, can cause deep pelvic pain and discomfort during or after ejaculation. It is one of the most common urological conditions in people under 50. Chronic prostatitis in particular can be difficult to treat and may require a combination of approaches including antibiotics (if bacterial), anti-inflammatory agents, and pelvic floor physiotherapy.
Peyronie's disease involves the formation of fibrous scar tissue inside the penis that causes curvature, often painful, particularly during erection. It can make certain sexual positions painful or difficult and in more severe cases may require medical or surgical treatment.
One of the most important things to understand about painful sex is that even after the physical cause is treated or resolves, pain can persist through a psychological mechanism. This is not a sign that the pain is imaginary - it is a well-understood neurological phenomenon.
When sex has been painful, the brain learns to associate penetration or sexual activity with pain. In anticipation of pain, the body activates its threat response: heart rate increases slightly, muscles tense, pelvic floor muscles contract. That tension makes penetration more physically uncomfortable. The discomfort confirms the expectation of pain, which reinforces the anxiety, which increases tension on the next occasion. This cycle can maintain and amplify painful sex long after the original cause has been resolved.
Research has consistently documented this mechanism in dyspareunia, and it is why effective treatment almost always involves addressing both the physical and psychological components. Treating the physical cause alone without addressing the conditioned anxiety response often produces incomplete resolution. Sex therapy, CBT, mindfulness-based approaches, and open communication with a partner about pacing and control are all tools that address the psychological component of the cycle.
The practical answer to when to seek help is: sooner rather than later. Pain during sex that occurs more than occasionally, that is worsening, that is associated with other symptoms such as bleeding, discharge, or pelvic pain at other times, or that is causing avoidance of sexual activity should prompt a visit to a GP, gynaecologist, or sexual health clinic.
Before the appointment, it helps to note: where the pain is felt (at the entrance, deeper, one-sided or central), when during sexual activity it occurs (on initial penetration, only with deep penetration, after orgasm, during certain positions), how long it has been happening, and whether it varies across the menstrual cycle. This information allows a clinician to narrow down the most likely causes quickly.
It is also worth finding a clinician who takes the concern seriously. Painful sex is frequently dismissed in primary care, particularly in younger people. If a healthcare provider's response is to suggest simply using more lubrication or relaxing more without any further investigation, it is reasonable to seek a second opinion from a gynaecologist or sexual health specialist.