Is urethritis contagious through sex?

Yes: If you have urethritis caused by a a sexually transmitted infection, such as gonorrhea, chlamydia, mycoplasma, or ureaplasma, you can give it to someone else during unprotected sex.

It can be. : If the urethritis is caused by a sexually transmitted agent such as gonorrhea or chlamydia, it can be. Urethritis is just a sign of a disease, and we should worry more that diseases are contagious, which may not have any signs or symptoms. This is why barrier protection with intercourse is so important.