Atrophic vulvovaginitis is a condition that affects many women as their bodies produce less estrogen, usually around menopause. It involves the thinning, drying, and inflammation of vaginal and vulvar tissues, leading to discomfort that can significantly impact daily life and intimate relationships. Though common and treatable, many women remain silent about their symptoms, missing opportunities for relief and improved quality of life.

How Common Is Atrophic Vulvovaginitis?

Atrophic vulvovaginitis is remarkably common, yet it remains an underreported and undertreated condition. At least half of all women who enter menopause show signs and symptoms of this condition, with some studies suggesting the prevalence ranges from 40 percent to as high as 60 percent among postmenopausal women.^[1][2][7] The risk increases with age, meaning that older women are even more likely to experience symptoms.

Despite how widespread atrophic vulvovaginitis is, only a small fraction of affected women seek medical attention. Studies indicate that merely 20 to 25 percent of symptomatic women discuss their concerns with healthcare providers.^[4][7] Many women feel embarrassed to bring up intimate complaints, while others mistakenly believe these symptoms are simply a normal and unavoidable part of aging that cannot be treated. This silence perpetuates suffering and prevents women from accessing effective treatments that could dramatically improve their wellbeing.

What Causes This Condition?

The primary cause of atrophic vulvovaginitis is estrogen deficiency, which refers to a significant decrease in the levels of the female hormone estrogen circulating in the body.^[1][3] Estrogen plays a vital role in keeping vaginal tissues healthy, lubricated, and thick. When estrogen levels drop, the tissues of the vagina and vulva become thinner, drier, and more fragile.

Menopause is by far the most common trigger for estrogen deficiency. During menopause, the ovaries naturally reduce their production of estrogen as part of the aging process. After menopause, circulating estrogen levels can drop dramatically, from greater than 120 picograms per milliliter to around 18 picograms per milliliter.^[4] This sharp decline sets off a cascade of changes in the vaginal and urinary tissues.

However, menopause is not the only cause. Several other situations can lead to decreased estrogen levels and result in atrophic vulvovaginitis, even in younger women. These include breastfeeding, which temporarily lowers estrogen due to hormonal changes that support milk production.^[3][4] Women who have undergone surgical removal of both ovaries, a procedure called oophorectomy, experience an abrupt drop in estrogen production and may develop symptoms rapidly.^[2]

Cancer treatments can also be a cause. Chemotherapy and radiation therapy directed at the pelvic area can damage the ovaries and reduce their ability to produce estrogen.^[2][4] Additionally, certain medications used to treat conditions such as breast cancer, uterine fibroids, or endometriosis have anti-estrogen properties. These include tamoxifen, aromatase inhibitors, danazol, leuprolide, nafarelin, and medroxyprogesterone.^[2][3][4] Women taking these medications may develop symptoms of vaginal atrophy as a side effect.

Other less common causes include immune disorders that affect ovarian function, conditions causing elevated prolactin levels, and primary ovarian insufficiency, where the ovaries fail to function properly before age 40.^[2][4] Some birth control pills with specific hormone profiles can also contribute to estrogen deficiency.^[2]

Who Is at Risk?

Women in menopause are the group most likely to experience atrophic vulvovaginitis because their bodies naturally produce less estrogen. However, several other factors increase the risk of developing this condition or make symptoms worse. Cigarette smoking is a significant risk factor because it decreases estrogen levels and accelerates the thinning of vaginal tissues.^[2][4] Women who smoke are more likely to experience earlier and more severe symptoms.

Sexual activity patterns also play a role. Women who engage in penetrative sexual activity less frequently, whether with or without a partner, appear to have a higher risk of moderate to severe vaginal atrophy.^[2] This may be because regular sexual activity helps maintain blood flow to the vaginal tissues and preserves elasticity. On the other hand, women who remain sexually active tend to have milder symptoms.^[4]

Women who have never given birth vaginally may be at increased risk, as vaginal childbirth seems to have a protective effect against severe atrophy.^[4] Additionally, women with naturally low estrogen levels before menopause or those with conditions causing non-fluctuating estrogen levels are more susceptible to developing symptoms.^[4]

Recognizing the Symptoms

The symptoms of atrophic vulvovaginitis can be both vaginal and urinary, reflecting the fact that estrogen deficiency affects the entire genitourinary system. Vaginal symptoms often develop gradually and may not become noticeable until five to ten years after menopause begins.^[6] The most common early symptom is vaginal dryness, which women may first notice during sexual activity when there is less natural lubrication.^[1][2]

As the condition progresses, other vaginal symptoms can emerge. These include burning sensations in the vagina, itching around the vaginal opening and vulva, and a feeling of soreness or irritation.^[1][3] Some women notice an unusual vaginal discharge, typically yellow in color, which differs from normal secretions.^[2] Spotting or light bleeding can occur, particularly after sexual intercourse, because the thinned vaginal tissues are more fragile and prone to minor tears.^[1][3]

Pain during sexual intercourse, medically known as dyspareunia, is a distressing symptom that affects many women with atrophic vulvovaginitis.^[2][3] The vaginal canal may become shorter and tighter due to tissue changes, which contributes to discomfort.^[1] The combination of dryness, thinning tissues, and reduced elasticity makes sexual activity painful and can negatively impact intimate relationships.

The urinary symptoms associated with this condition can be equally troubling. Women may experience a frequent urge to urinate, a burning sensation when urinating, and the need to urinate more often than usual, including during the night.^[1][2] Urinary incontinence, or the inability to hold urine, can develop, along with blood in the urine.^[2][3] Recurrent urinary tract infections become more common because the changes in vaginal pH and tissue integrity make it easier for bacteria to cause infections.^[1][3]

How the Body Changes

Understanding what happens inside the body helps explain why symptoms occur. Throughout a woman’s life, the vaginal tissues respond to levels of circulating estrogen. When estrogen levels are adequate, the vaginal lining is thick, moist, and rich in a substance called glycogen.^[4] Beneficial bacteria called Döderlein’s lactobacilli feed on glycogen from sloughed vaginal cells and produce lactic acid, which keeps the vaginal environment acidic with a pH level between 3.5 and 4.5.^[4] This acidic environment is the body’s natural defense against infections.

When estrogen levels drop, numerous changes occur in the vaginal and vulvar tissues. The vaginal lining becomes thinner, drier, and less stretchy. Blood flow to the area decreases, which reduces the delivery of nutrients and oxygen to the tissues.^[2] The amount of normal vaginal fluids diminishes significantly, causing dryness. The vaginal canal itself can narrow and shorten, and the tissues lose their characteristic folds, known as rugae, which normally provide elasticity.^[3]

The vaginal pH level rises above 4.6, making the environment less acidic.^[7] This shift in pH allows the beneficial lactobacilli to disappear and be replaced by other bacteria, including gram-negative organisms such as Escherichia coli and bacteria associated with bacterial vaginosis.^[3] This change in bacterial flora increases susceptibility to urinary and bladder infections, which are more common in postmenopausal women than in younger women.^[3]

At the cellular level, estrogen deficiency triggers numerous transformations. There is a proliferation of connective tissue, fragmentation of elastin fibers, and thickening of collagen, a process called hyalinization.^[4] These changes can result in the formation of tiny blood vessels visible under the surface, patchy redness, small tears called fissures, bruising, enlarged small blood vessels known as telangiectases, and even ulcerations.^[3][4]

These changes are not limited to the vagina. Because the vaginal and urinary tracts share a common embryological origin, the urethra and bladder tissues are also estrogen-dependent and undergo similar deterioration in a low-estrogen environment.^[4] This explains why urinary symptoms are such a prominent feature of the condition.

The external genital area, or vulva, also changes in appearance. The vulva may appear paler, and the labia become thinner and smaller.^[3] The tissue covering the clitoris becomes less noticeable, and pubic hair may become sparser.^[3] A red structure or polyp may become visible at the urethral opening, known as a urethral caruncle.^[3] Stretching the vulva during examination or intercourse may cause the skin at the bottom of the vagina or elsewhere to split.^[3]

Can It Be Prevented?

While it is not always possible to completely prevent atrophic vulvovaginitis, especially since menopause is a natural life stage, there are measures that can reduce the risk or delay the onset of symptoms. Avoiding smoking or quitting smoking is one of the most important steps, as smoking accelerates estrogen loss and worsens tissue thinning.^[2]

Maintaining regular sexual activity, whether with a partner or through self-stimulation, can help preserve vaginal health.^[4][6] Sexual activity improves blood circulation to the vaginal area, which helps keep tissues healthy and maintains elasticity. Even if symptoms are present, continuing sexual activity with the help of lubricants can be beneficial.

Using water-soluble vaginal lubricants during sexual intercourse can help prevent painful experiences that might lead to avoidance of intimacy.^[6] Regular use of vaginal moisturizers, even when not engaging in sexual activity, can help keep tissues hydrated and reduce dryness. These products are available over the counter and can be used two to three times per week.^[3]

Some women who are approaching menopause may benefit from discussing preventive estrogen therapy with their healthcare provider, though this decision must be individualized based on personal health history and risk factors.^[6] Getting regular exercise and staying well-hydrated may also support overall tissue health and hormone balance.^[2]