Vaginal Dryness: Causes and What Actually Helps

Vaginal dryness is common, treatable, and discussed far less than it should be. Surveys consistently find that a large share of women affected by it never raise it with a clinician, and a large share of clinicians never ask — so a problem with straightforward solutions goes untreated for years, quietly reshaping intimacy, comfort and confidence.

It is a symptom rather than a diagnosis, and the reason it responds so variably to treatment is that two quite different problems produce it. Telling them apart is the whole task, because the answer to one is not the answer to the other.

🔬 How lubrication actually works

A widespread assumption is that vaginal lubrication comes from glands. It largely does not. The vagina has no secretory glands along its walls.

What happens during arousal is a vascular event. Blood flow to the pelvis increases, the vaginal walls become engorged, and pressure within those vessels pushes plasma outward through the vaginal lining — a process called transudation. That fluid, together with a small contribution from cervical mucus and from the Bartholin glands near the entrance, is what provides lubrication. It typically appears within ten to thirty seconds of effective arousal.

Three things follow from this, and they explain most cases of dryness.

First, lubrication depends on blood flow, so anything that reduces genital vasocongestion reduces it. Second, it depends on arousal, meaning the physical response, which is not the same thing as desire and does not always accompany it. Third, it depends on the health of the vaginal wall itself, which is maintained by oestrogen. When oestrogen falls, the lining thins, blood supply to it decreases, elasticity is lost and the tissue can no longer produce transudate effectively no matter how aroused the woman is.

⚖️ Two different problems

Separating these is worth doing carefully, because the history usually makes it clear.

The tissue-related form has a name that has replaced the older term vaginal atrophy: genitourinary syndrome of menopause. The change of name was deliberate, reflecting that it affects the bladder and urethra as well as the vagina, and that it is progressive rather than something that settles on its own. Unlike hot flashes, which usually fade over time, this does not improve without treatment.

🗂️ What causes it

Low oestrogen is the largest single category, but far from the only one.

🔴 When to be examined rather than self-treating

Most vaginal dryness is straightforward. Some presentations are not, and treating them as dryness delays a diagnosis that matters.

• Bleeding after menopause, whether or not related to sex, requires assessment. It is usually caused by thin tissue, but it must be investigated to exclude endometrial cancer
• Abnormal discharge, odour or itching suggesting infection rather than dryness
• Visible changes — white patches, thickened or fused skin, ulceration or a lump. Lichen sclerosus in particular causes dryness and pain, requires a specific steroid treatment, and carries a small risk of vulval cancer if untreated
• Pain at a specific point or on light touch, which points to vulvodynia rather than dryness
• Pain preventing penetration entirely, which suggests pelvic floor muscle spasm and responds to physiotherapy rather than lubricant
• Dry eyes and dry mouth alongside, which raises the possibility of Sjogren syndrome

💧 Lubricants and moisturisers are not the same thing

These two categories are constantly conflated, including on packaging, and using the wrong one is a frequent reason women conclude that nothing works.

Someone with tissue-related dryness needs a moisturiser used regularly, and a lubricant additionally for sex. Using only a lubricant addresses the moment and leaves the underlying dryness unchanged.

Choosing a lubricant involves more than preference. Water-based products are the most versatile and condom-safe but dry out and need reapplying. Silicone-based products last much longer and suit water use, but degrade silicone toys. Oil-based products, including coconut oil and petroleum jelly, destroy latex condoms and diaphragms and should not be used with them.

Two technical properties matter more than most people realise. Osmolality describes how concentrated the product is; excessively high osmolality draws water out of the vaginal lining and damages the epithelium, and the World Health Organization has published limits for this reason. pH should approximate the vagina, around 3.8 to 4.5, since alkaline products disturb the normal bacterial balance.

Worth avoiding: high concentrations of glycerin, which may promote thrush in susceptible women; warming, tingling and flavoured products, which frequently irritate already fragile tissue; petroleum jelly, associated with bacterial vaginosis; and anything with fragrance.

💊 Local oestrogen

Where the problem is tissue-related, local oestrogen is the definitive treatment, and it does something no lubricant can: it restores the tissue itself.

Applied directly to the vagina as a tablet, pessary, ring or cream, it thickens the lining, restores elasticity and blood flow, returns the pH to normal, and re-establishes the healthy bacterial population. Improvement usually begins within two to three weeks and continues over several months. It also reduces recurrent urinary tract infections and urinary urgency, which is a substantial benefit in older women that is frequently overlooked.

Vagifem (vaginal estradiol 25 mcg) is one of the commonly used forms, given as a small tablet inserted into the vagina — typically daily for a short initial period, then reduced to twice weekly for maintenance. Treatment is ongoing, because symptoms return within months of stopping.

The situation in women with a history of breast cancer is more nuanced and should be decided with the treating team rather than by a general rule. Non-hormonal measures are tried first. Where they fail and quality of life is significantly affected, local oestrogen is used in some circumstances, with the decision weighted by the type of cancer and the treatment the woman is receiving.

🧬 Other prescription options

Several alternatives exist for women who cannot or prefer not to use local oestrogen.

Vaginal DHEA (prasterone) is a precursor converted locally into small amounts of oestrogen and testosterone within the vaginal cells, improving dryness and pain with sex.

Ospemifene is an oral tablet acting selectively on oestrogen receptors, with a positive effect on vaginal tissue. It suits women who dislike vaginal application, and carries its own considerations including hot flashes.

Systemic hormone therapy — oral or transdermal oestradiol, or conjugated oestrogens — treats vaginal symptoms alongside hot flashes, night sweats and bone loss. It is the right choice when those broader symptoms are present, and an unnecessarily large intervention when dryness is the only complaint. A proportion of women on systemic therapy still need local treatment as well.

Pelvic floor physiotherapy deserves a mention here because it is under-used. Where dryness has led to painful sex, the pelvic floor commonly tightens protectively, and that muscular response then perpetuates the pain after the dryness itself is treated. Physiotherapy addresses it directly.

❤️ The arousal side

Where the tissue is healthy and the dryness is situational, the useful interventions are different, and they are not lesser for being non-pharmacological.

Time matters more than technique. Genital response takes considerably longer for many women than the surrounding culture suggests, and much dryness is simply insufficient arousal before penetration. This is a mechanical fact rather than a failing.

Desire is often responsive rather than spontaneous. A large proportion of women, particularly in longer relationships, do not experience desire before intimacy begins; desire emerges in response to pleasant physical contact. Waiting for spontaneous desire that never arrives, and interpreting its absence as a problem, is a common and unnecessary source of distress.

Context is a physiological variable. Fatigue, stress, resentment, worry about being interrupted and anxiety about pain all suppress the arousal response directly. Fixing the circumstances often achieves what no product will.

Pain creates its own cycle. Once sex has hurt, anticipation of pain reduces arousal, which reduces lubrication, which causes more pain. Breaking that loop usually requires treating the original cause, using generous lubrication, and a period without pressure to proceed to penetration. Psychosexual therapy is genuinely effective here and is not a last resort.

Talking to a partner is difficult and it is also the intervention with the largest effect, because a partner who understands that dryness is physiological rather than a verdict on the relationship responds quite differently.

🔎 What about tablets that increase blood flow

Since the article this replaces mentioned tadalafil, the evidence deserves an accurate summary.

PDE5 inhibitors such as tadalafil and sildenafil increase genital blood flow in women as they do in men. What has not followed reliably is improvement in the experience of arousal, and trials in women with general sexual dysfunction have been largely disappointing. The clearest signal in the evidence is a specific one: some benefit in women whose sexual difficulty was caused by antidepressants of the SSRI class.

They are not a treatment for genitourinary syndrome of menopause, because the problem there is thinned tissue rather than insufficient blood flow, and increasing flow to tissue that cannot produce transudate achieves little. Anyone whose dryness is constant and accompanied by irritation or urinary symptoms is being offered the wrong solution if this is the first suggestion.

🚫 Things that make it worse

Several widely practised habits actively harm the vaginal environment.

Douching removes the protective bacterial population and raises the risk of infection. The vagina is self-cleaning; washing the vulva externally with water or a plain non-fragranced product is all that is required.

Perfumed products — intimate washes, wipes, bath additives, scented sanitary products — are a common cause of irritation that then gets attributed to dryness.

Smoking reduces blood flow and lowers oestrogen, and is associated with earlier menopause.

Avoiding sex entirely because it hurts is understandable and unfortunately counterproductive in tissue-related dryness, where regular gentle activity, with or without a partner, maintains blood flow and elasticity. Treatment first, then gradual return.

📋 A practical order of steps

For most women, working through this sequence resolves the problem.

Start by identifying which type of dryness is present, using the timing and associated symptoms described above. If it is constant and accompanied by irritation or urinary symptoms, the tissue is the problem and a lubricant alone will not be enough.

Remove irritants: stop douching, drop perfumed products, review whether a medication started recently coincided with the onset.

Add a well-chosen vaginal moisturiser used regularly, and a good lubricant for sex, with attention to osmolality, pH and condom compatibility.

Seek a prescription assessment if that is insufficient, particularly after menopause, where local oestrogen is likely to be the answer and improvement should be evident within a few weeks.

Address arousal, context and the relationship in parallel rather than afterwards, since the two sides interact and treating only one frequently leaves the problem half-solved.

And raise it at all. The reluctance to mention this to a clinician is the single largest obstacle to treating a condition that responds well — and it is a routine consultation for anyone working in this field.

Local treatment for menopausal dryness is stocked as Vagifem (vaginal estradiol), with the fuller range in the womens health category.

❓ Frequently asked questions

📑 Sources and editorial

• North American Menopause Society position statement on genitourinary syndrome of menopause
• International Society for the Study of Womens Sexual Health terminology consensus on genitourinary syndrome of menopause
• World Health Organization advisory on personal lubricant osmolality and pH
• NICE guidance on menopause diagnosis and management
• Evidence reviews on vaginal oestrogen use in women with a history of breast cancer
• FDA prescribing information for vaginal estradiol and conjugated oestrogens
• Related products: Vagifem vaginal estradiol, womens health category
• RXshop Editorial Team — reviewed by Anita Sharma, MD, FACOG, Obstetrics and Gynecology