What Causes Vaginal Dryness?
A clear, honest guide to the hormonal and non-hormonal causes of vaginal dryness, who is affected and what actually helps.
Shop Intimate WellnessThe vagina is normally kept moist by a thin layer of clear fluid produced by glands in the cervix and, during arousal, by the Bartholin glands near the vaginal opening. When this fluid production reduces for any reason, the vaginal walls become dry, thinner and less elastic. This causes discomfort, irritation and often pain during sex. Understanding the cause is the first step toward finding the right solution.
The Primary Cause: Declining Oestrogen
Oestrogen is the hormone most directly responsible for maintaining vaginal health. It keeps the vaginal lining thick, well-lubricated and elastic. When oestrogen levels fall for any reason, the vaginal walls thin and dry out. This is why vaginal dryness is most commonly associated with menopause — but declining oestrogen occurs at multiple life stages and for multiple reasons beyond natural ageing.
The NHS lists several situations in which oestrogen levels drop: menopause and perimenopause; the postpartum period and breastfeeding; surgical removal of the ovaries; certain cancer treatments including chemotherapy and radiotherapy; and some forms of hormonal contraception.
Non-Hormonal Causes
Not all vaginal dryness is hormonal. A significant number of women experience dryness at younger ages for non-hormonal reasons. These include: antihistamines and decongestants, which dry all mucous membranes including vaginal tissue; certain antidepressants (particularly SSRIs); chemotherapy drugs; autoimmune conditions such as Sjogren's syndrome; diabetes; insufficient arousal before penetration; and psychological factors including stress and anxiety, which directly affect the arousal response and its associated lubrication.
External irritants also play a role — scented soaps, douches, perfumed hygiene products, harsh washing powders and swimming pool chemicals can all disrupt the delicate vaginal environment and contribute to dryness and irritation.
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Shop NowWhen to See a GP
Vaginal dryness that persists, significantly affects quality of life or is accompanied by other symptoms — unusual discharge, bleeding, pelvic pain or recurrent urinary tract infections — warrants a GP consultation. A doctor can identify the underlying cause, rule out conditions such as lichen sclerosus or vaginal atrophy, and discuss prescription options including topical oestrogen therapy (vaginal oestrogen) and HRT.
Many women delay seeking help due to embarrassment. The NHS and most GPs are experienced in discussing vaginal dryness and have effective treatments available. It is a recognised medical symptom, not something to manage in silence. For more on related topics, see our guide to vaginal atrophy and when to see your GP about intimate health.
Immediate Relief vs Long-Term Treatment
Lubricants provide immediate friction relief during sex. Applied before and during penetration, a quality glycerin-free, pH-balanced lubricant addresses symptoms in the moment without any medical intervention required.
Vaginal moisturisers are applied regularly — typically two to three times weekly — to maintain ongoing vaginal tissue hydration between sexual activity. They address the daily discomfort of dryness more effectively than lubricant alone.
Vaginal oestrogen treats the underlying tissue changes caused by declining oestrogen rather than just managing symptoms. It is applied locally, has minimal systemic absorption and is available on NHS prescription. For many women with menopause-related dryness, it is the most effective long-term solution.