Our first aim is to investigate the prevalence of altered vaginal microbiotas among women seeking fertility treatment in Denmark. Secondly we want to establish whether there are correlations between altered vaginal microbiotas and self-measurements of both the vaginal pH performed with the Saling pH glove™ and a self-collected swab with Copan Eswab™ because these would be useful for an easy-access longitudinal screening option. Finally, the third aim was to explore how the species composition of vaginal microbiotas measured by a multiplex qPCR assay was reflected in Nugent scores.