Three-dimensional ultrasound evaluation of the pelvic floor in postmenopausal women using hormone therapy

•Menopause-related changes in the pelvic floor often interfere with the well-being and sexuality of postmenopausal women.•Menopausal hormone therapy (MHT) may play a role in muscle function since estrogen receptors have been identified on the pelvic floor muscles (PFM).•We evaluated the 3D ultrasound characteristics of the PFM in two groups of postmenopausal women: users and nonusers of MHT.•In early postmenopausal women, the use of MHT was associated with a smaller urogenital hiatus area and higher PFM strength•These results suggest that the use of MHT for the treatment of climacteric symptoms in the first years after menopause may help to prevent a decline in the muscle function of the PFM.