Are Probiotics Actually the Answer to All Your Vagina Problems? Probiotics are imperative for keeping your GI system in check. Your vagina is just like your gut—it harbors a lot of good bacteria. Things like sexual intercourse, hormone changes, and fragranced feminine hygiene products can disrupt the vagina's ecosystem. When that happens, you can end up with a yeast infection or bacterial vaginosis. An extra dose of probiotics can help restore the balance. The key? seek out a product that's tailored for women's or vaginal health. Look for one ingredient in particular: lactobacilli, or lactobacillus acidophilus, a strain of good bacteria that helps maintain a healthy vagina. Probiotics might keep you from needing antibiotics for a yeast infection or bacterial vaginosis. There is also evidence that they can increase the lactobacilli in your system to help prevent pesky vaginal infections.