Let’s set the record straight: yeast infections **aren’t technically contagious** in the way a cold or the flu is. But yes, you *can* pass yeast to a partner—so let’s unpack how that works.
First, What’s a Yeast Infection?
Yeast infections happen when there’s an overgrowth of a fungus called *Candida albicans*—which normally lives in small amounts in the vagina, mouth, gut, and skin. Trouble starts when things like hormones, antibiotics, tight clothes, or immune imbalances throw off the vaginal microbiome.
Can You Pass It to a Partner?
Short answer: Yes, it’s possible—especially during vaginal, oral, or anal sex. It’s called “non-sexually transmitted transmission,” and it’s more common than people think.
- Men can develop yeast infections on the penis (especially if uncircumcised)
- Oral sex can transfer yeast to the mouth (oral thrush)
- Shared toys or poor hygiene can also spread yeast
Is It an STI?
Nope. Yeast infections aren’t classified as sexually transmitted infections, but frequent sex or a new partner can change your vaginal pH and lead to a flare-up.
How to Lower Your Risk
- Pee and rinse off after sex
- Wash hands and toys before and after play
- Avoid douching or scented products
- Wear breathable cotton underwear
- Use a pH-balancing wash (like Vagisil Balance)
OTC Options for Relief
- Monistat (miconazole): Available in 1, 3, or 7-day treatments
- Tioconazole ointment: Single-dose option
- AZO Yeast Plus: For itch relief + homeopathic support
TL;DR:
Yeast infections aren’t officially contagious—but they *can* be passed during sex. Good hygiene, communication, and a stocked medicine cabinet can help you stay on top of it.
*Sources: CDC, Planned Parenthood, Cleveland Clinic*