What is a vaginal maturation index test?
The vaginal maturation index (VMI) is a laboratory test that examines the types of cells lining the vagina. It helps confirm low oestrogen effect and supports the diagnosis of vaginal atrophy, especially in complex cases.
Detailed Medical Explanation
The VMI involves collecting a gentle swab of vaginal cells and examining them under a microscope. In atrophy, there is a higher proportion of basal and parabasal cells, and fewer mature superficial cells. This test is not needed for most women but can clarify diagnosis in uncertain cases. NCBI: Vaginal Maturation Index.
Clinical Context
VMI is mainly used in research or when diagnosis is unclear after standard evaluation.
Evidence-Based Approaches
Guidelines recommend VMI for research or select clinical scenarios only. RCOG: Vaginal Maturation Index.