Chlamydia is a sexually transmitted infection (STI) that can harm your health and have a negative impact on your fertility if it is not treated. Because there are often no symptoms, it is easily passed on between sexual partners.
It is mostly spread by unprotected sex, whether it be vaginal, anal, and even oral. Symptoms in men which may occur, include tenderness in or around the testicles and a whitish discharge from the penis.