Most women have experienced a vaginal infection at some point in their lives and know how it can not only be uncomfortable, but can interfere with daily activities. These infections occur when the natural bacteria that live in the vagina, primarily Lactobacillus types, are unable to thrive. When present in the vagina, these bacteria create a byproduct that keeps the environment acidic, prevents attachment of bad bacteria and yeast, and promotes the local immune system to fight infections.
Anything that changes the pH of the vagina can reduce or wipe out the good bacteria in the vagina and put you at risk for an infection. This can include stress, medical illnesses, and vaginal irritation by soap, detergents, or lubricants. Changes in hormone levels, due to birth control pills, your period, or around menopause can also affect the vaginal pH and increase the chances of an infection. Taking antibiotics can directly kill the good bacteria and is a significant risk factor for yeast infections.
Since most of the bacteria in the vagina originate in the intestines, the best way to ensure there is enough good bacteria is to have a diet rich in probiotics. Dairy products and fermented foods (such as those listed below) are especially high in the strains of bacteria helpful in maintaining the vaginal environment. While getting probiotics from food is preferred, if needed, oral supplements can be used as well. Supplements with multiple Lactobacillus species, including L. acidophilus, are the most effective in restoring good bacteria to the vagina. It is also important to have adequate fiber intake in your diet to avoid constipation. Straining can irritate the pelvic floor muscles and cause spasms and inflammation, which can affect the local pH in addition to causing pelvic pain.
Tips for Maintaining and Restoring Good Bacteria
- Use dye-free and fragrance-free soaps, detergents, tampons, and pads
- Avoid excess moisture by drying area after showering, wear cotton underwear
- Consider sensitive lubricant and/or latex-free condoms
- Do NOT douche
- Have probiotic foods daily
- Yogurt
- Kefir
- Sauerkraut
- Dark chocolate
- Miso soup
- Pickles
- Tempeh
- Kimchi
- Kombucha tea
- Soft cheeses
- Ensure adequate fiber intake ideally with vegetables and whole grains
Call your provider if you notice changes in your discharge, a new odor, itching, burning, bumps or abdominal pain.


