Results
atrophy, vaginal dryness, vaginal atrophy, vaginal atrophy symptoms
RECRUITMENT, SECONDARY, ATROPHY, VAGINAL ATROPHY, REGRESSION
A total of 44 participants were recruited and randomized to the laser group and sham group, with 22 participants in each group. Of the participants, five were lost to follow-up, and a total of 39 participants completed the study (the detail was shown by a consort diagram in Fig. 
Consort diagram of the recruitment and drop out of the participants in the laser group and sham group
Baseline characteristics of the subjects in the laser group and sham groupTable 
Vaginal lactobacilli grading, vaginal atrophy symptoms (VAS), vaginal atrophy score, and vaginal pH in each visit of participants in the laser group and sham groupVaginal atrophy symptoms, which were measured by VAS, were significantly decreased after treatment in the laser group. However, no statistical difference in vaginal atrophy symptoms was observed after sham operations. Table In determining secondary outcomes, mixed-effect multiple linear regression was used, and it showed a significant change in vaginal dryness (mean change = − 2.28, 
Secondary outcome adjusted with time and age because of imperfect randomization