A woman’s vaginal environment has an acidic pH of about 4-4.5. An increase in pH may be associated with vaginitis or a dysbiosis of the vaginal flora. a pH of 5.1 indicates that the normal acidic environment has been exceeded. A pH of 4-4.5 in the vagina is not conducive to microbial growth. A variety of pathogenic microorganisms interact with each other in the vagina and will reach a state of relative balance. The main role in this is played by lactobacilli, which can break down glycogen and maintain an acidic environment, thus inhibiting the growth of pathogenic microorganisms and keeping the vaginal environment in a relatively balanced state. However, when the pH is 5.1, it is a weakly acidic environment and prone to vaginitis. In this case it depends on whether the patient has other pathogenic microbial infections such as trichomonas, mycobacterial infections or bacterial vaginosis, and some people may have aerobic vaginitis present. Therefore, the presence of vaginal abnormalities is not only determined by the pH level of the vagina, but also by the presence of other pathogenic microorganisms. If there is only Lactobacillus infection in the vagina and no other pathogenic microorganisms, Lactobacillus capsules can be used to improve the vaginal environment. If there are other types of vaginitis, they should be treated separately. For example, for mycosis vaginitis, suppositories for mycobacteria can be used; for trichomoniasis, both husband and wife need to take oral metronidazole or tinidazole at the same time; for bacterial vaginosis, oral metronidazole or tinidazole is also needed, and vaginal suppositories of metronidazole type can also be used; for aerobic vaginitis, clindamycin gel or suppositories. In case of aerobic vaginitis, clindamycin gel or suppositories are needed.