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Atrophic vaginitis is characterized by the thinning and inflammation of the vaginal walls, primarily due to decreased estrogen levels, often occurring during and after menopause. This thinning of the vaginal tissues results in a range of symptoms, including dryness, irritation, and a burning sensation. The reduced estrogen can lead to a loss of elasticity and moisture, making the vaginal tissues more susceptible to trauma and inflammation.

Increased vaginal lubrication is not associated with atrophic vaginitis; in fact, one of the hallmark symptoms is decreased lubrication. Frequent urinary tract infections can be a consequence of changes in the vaginal flora or pH, but they are not a primary feature of atrophic vaginitis itself. Similarly, menstrual irregularities are typically related to hormonal changes but are not direct manifestations of atrophic vaginitis, which is more localized to vaginal tissue changes rather than affecting menstrual cycles.