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By Mayo Clinic staffA variety of conditions can cause vaginal dryness. Determining the cause is key to helping you find an appropriate solution. Potential causes include:
Decreased estrogen levels
Reduced estrogen levels are the main cause of vaginal dryness. Estrogen, a female hormone, helps keep vaginal tissue healthy by maintaining normal vaginal lubrication, tissue elasticity and acidity. These factors create a natural defense against vaginal and urinary tract infections. But when your estrogen levels decrease, so does this natural defense, leading to a thinner, less elastic and more fragile vaginal lining.
Estrogen levels can fall for a number of reasons:
- Menopause or perimenopause
- Childbirth
- Breast-feeding
- Effects on your ovaries from cancer therapy, including radiation therapy, hormone therapy and chemotherapy
- Surgical removal of your ovaries
- Immune disorders
- Cigarette smoking
Medications
Allergy and cold medications, as well as some antidepressants, can decrease the moisture in many parts of your body, including your vagina. Anti-estrogen medications, such as those used to treat breast cancer, also can result in vaginal dryness.
Sjogren's syndrome
In this autoimmune disease, your immune system attacks healthy tissue. In addition to causing symptoms of dry eyes and dry mouth, Sjogren's syndrome can also cause vaginal dryness.
Douching
The process of cleansing your vagina with a liquid preparation (douching) disrupts the normal chemical balance in your vagina and can cause inflammation (vaginitis). This may cause your vagina to feel dry or irritated.