Abstract:Objective To investigate the effect of carbon dioxide (Carbon dioxide, CO2) dot matrix laser combined with external electromagnetic stimulation in the treatment of vaginal laxity.Methods A total of 80 patients with vaginal laxity admitted to Anhui Provincial Children's Hospital from January 2023 to August 2023 were selected and divided into two groups by random number table method. The control group (n =40) was treated with external electromagnetic stimulation, and the observation group (n =40) was treated with CO2 laser fractional therapy. The therapeutic effects of the two groups before and 1 month, 2 months and 3 months after treatment were compared.Results Comparison of pelvic floor muscle strength between the control group and the observation group at 1 month, 2 months and 3 months after treatment: there were statistically significant differences in pelvic floor muscle strength between anterior static, fast twitch and slow twitch twitch muscle strength at different time points (P <0.05), pelvic floor muscle strength was lower in the prestatic state and higher in the fast-twitch and slow-twitch states (P <0.05), there was a statistically significant difference in the change trend of pelvic floor muscle strength in anterior static, fast-twitch and slow-twitch muscles (P <0.05). Comparison of sexual function quality between the control group and the observation group at 1 month, 2 months and 3 months after treatment: the difference in FS-FI score between different time points was statistically significant (P <0.05), the difference was statistically significant in FS-FI score at resting (P <0.05), the difference was statistically significant in the comparison of FS-FI score at rest (P <0.05).Comparison of quality of life between the control group and the observation group at 1 month, 2 months and 3 months after treatment: there were statistically significant differences in the scores of energy, physiological function and physical function between different time points (P <0.05), there were statistically significant differences in the scores of energy, physiological function and physical function in the resting state (P <0.05), the change trend of energy, physiological function and somatic function scores in the resting state was statistically significant (P <0.05).Conclusion CO2 laser dot matrix combined with external electromagnetic stimulation can significantly improve the pelvic floor muscle strength, improve the quality of life and life of patients with vaginal laxity, and it is worth promoting.