Which of the following is the cause of atrophic vaginitis?

PGIMER NO - 2020

Obstetrics & Gynaecology

Easy

Appeared in: PGIMER NO - 2020

Explanation

Atrophic vaginitis, also known as genitourinary syndrome of menopause, is caused by a significant decrease in estrogen levels.
Estrogen is essential for maintaining the thickness, elasticity, and lubrication of the vaginal mucosa.
It promotes glycogen accumulation in vaginal cells, which is converted to lactic acid, maintaining an acidic pH that protects against infection.
When estrogen levels fall (e.g., during menopause), the vaginal lining becomes thin, dry, and fragile, and the pH increases, leading to symptoms like dryness, itching, and painful intercourse.

Option B: Progesterone's primary role is in the regulation of the menstrual cycle and maintenance of the uterine lining for pregnancy, not in maintaining vaginal epithelial health.
Option C: Gonadotrophin (FSH and LH) levels are typically elevated in postmenopausal women due to the lack of negative feedback from estrogen. High levels are a result of ovarian failure, not a cause of vaginal atrophy.
Option D: While very high levels of prolactin (hyperprolactinemia) can suppress estrogen production and indirectly lead to vaginal atrophy, estrogen deficiency is the direct cause. Prolactin itself does not cause the tissue changes.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pathophysiology of Atrophic Vaginitis as background academic context rather than a clinical decision trigger.
Nurses play a vital role in educating patients about atrophic vaginitis, explaining that it is a common and treatable condition associated with menopause.
Patient teaching should include recommending the use of water-soluble lubricants to alleviate discomfort during intercourse and advising against irritants like scented soaps or douches.
Nurses may administer prescribed treatments, such as topical estrogen creams, rings, or tablets, which directly address the underlying estrogen deficiency and restore vaginal health.

How to Approach the Question

First, identify the key term in the question: 'atrophic vaginitis'.
Recall the pathophysiology of this condition. It is most commonly associated with hormonal changes during menopause.
Consider the primary female sex hormones and their functions. Estrogen is responsible for maintaining the secondary sexual characteristics and the health of reproductive tissues like the vagina.
Evaluate the options. A lack of estrogen directly leads to the thinning and drying of the vaginal walls.
Eliminate the other options by recalling their primary roles: Progesterone affects the uterus, Gonadotrophins stimulate the ovaries, and Prolactin is for milk production.
Conclude that the change in estrogen levels is the most direct cause of atrophic vaginitis.

Concept Tested & Keywords

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E6 Pharmacology Katzung 16e p. 1121-1123

E6 Midwifery Obstetrics and Gynecology Nursing Sandeep Kaur p. 25-33