Can your partner, girlfriend, or boyfriend cause a UTI? Here’s the truth👀 If you’ve ever searched “can s3x cause a UTI?” or “are UTIs s3xually transmitted?”… you’re not alone. UTIs aren’t STIs, but s3x can be a trigger. During s3x, bacteria can enter the urinary tract, and with a new partner, your body may be adjusting to new bacteria. So if you’ve been blaming yourself (or your partner), it’s not about doing something wrong. It’s about understanding what causes UTIs and how your body responds new bacteria. We’re here to break down UTI myths with real, science-backed info.