The STD You’ve Probably Never Heard Of

Here’s where the not-fun part comes in: When trichomoniasis does cause symptoms, they’re not exactly pleasant. Men may feel itching or irritation inside the penis, whereas women can experience a gross-smelling vaginal discharge, itching, and burning during urination. Painful sex can also happen for both genders. And pro tip: Anytime you’re having painful sex, it’s a good idea to stop immediately.