“…For the study on vaginal microecology, the investigation indicators included were the bacterial flora density, 4–6 bacterial floral diversity, dominant bacterial species, fungi and trichomonas in vagina, also for vaginal pH, hydrogen peroxide, leukocyte esterase (LE), sialidase (SNA), 3 glucuronidase (GUS), and acetylglucosaminidase (NAG) detection kits were used.…”