The pH scale ranges from 0 to 14. A pH of less than 7 is considered acidic, while a pH over 7 is considered alkaline (basic). A “normal” vaginal pH is moderately acidic, hovering between a pH of 3.8 and 4.5.
The vagina’s acidic environment is a natural defense against bacterial growth. If your vaginal pH becomes too alkaline, there’s an increased chance for bacterial overgrowth.
So, how do you know if your vaginal pH is too alkaline?

Here are some ways to tell:

A. Change in discharge color and texture. Your vaginal discharge may be white, gray, or yellow with a cottage cheese-like texture. Healthy discharge will typically be clear to white.
B. Change in discharge odor. You may notice a strong, foul, or “fishy” smell. Healthy discharge may have a very faint smell and can often be odorless.
C. Discomfort and itching around the vagina and vulva. You may feel itchiness around the opening of the vagina, burning and discomfort while peeing, or burning and discomfort during intercourse.