Chlamydia is a common sexually transmitted infection (STI) caused by bacteria. It affects both men and women and occurs in all age groups, though it is most prevalent among young women.

Chlamydia is not difficult to treat once you know you have it. If left untreated, however, it can lead to more-serious health problems

Syphilis is a sexually transmitted disease that progresses in three stages. In the first stage, syphilis presents as painless ulcers on the genitals or mouth.

During the second stage, syphilis develops into a rash or painless ulcers and sores on the palms and bottoms feet. Late stages of syphilis can cause tumors, blindness, and paralysis. It can damage your nervous system, brain and other organs, and may even kill you