Your pH Balance
To keep it simple, your pH balance measures how acidic or basic your vagina and the area surrounding it are. It’s measured on a scale of 0 to 14, with 0 being the most acidic and 14 being the most basic. With that being said, basic isn’t exactly considered a good thing. A “normal” and healthy vagina is acidic to some capacity, with healthy levels of acid being in the 3.5 and 4.5 range.
You know when your undies look slightly bleached after wearing them? While most people tend to freak out or feel confused, it’s totally normal. That’s simply a result of healthy acidic vaginal bacteria interacting with your underwear. But can your underwear itself throw off your pH balance?
Well, not exactly. In fact, Kim Langdon, MD tells Byrdie that the most common factors for unbalanced vaginal pH are: infections, chemicals, antibiotics, and semen. Now, with that being said, underwear with toxic chemicals raises eyebrows here since they make direct contact with the vagina.

Image Credit: Ella Byworth for Metro.co.uk
"happy and healthy vagina"
Treating Things Right
Aside from wearing our underwear, here are some tips that Dr. Hedieh, founder of Deodoc and OB/GYN suggests for a happy and healthy vagina.
- Use pH-balanced wash (avoid the fragrance-infused stuff at the drugstore)
- Wear cotton underwear, especially organic (Hey, La Coochie)
- Never use perfume down there
- Sleep commando when you can