Unfortunately, STDs tend to be the gifts that keep on giving as people often unknowingly pass them on from person to person. STDs are silent infections. You may not have visible symptoms especially if you're a woman. Moreover, contrary to popular belief, STD screens are not standard protocol for yearly physicals or gynecological exams. You have to ask your doctor to be tested which you should do.
Early detection is key, and the majority of STDs are treatable and often curable.
Use a condom. A bacterial infection in the genital area. Most people show no visible symptoms. However, vaginal bleeding, unusual discharge from the penis or vagina, abdominal pain, burning during urination, painful intercourse for women or inflammation of the testicles for men are all signs. Antibiotics will cure it.