Sexually Transmitted Infections TopicsShow More
Preliminary information from the CDC suggests nearly 2.3 million cases of chlamydia, gonorrhea, and syphilis were diagnosed in the U.S. in 2017.
Health experts have known for decades that certain infectious agents can be found in semen, but scientists have made discoveries that have expanded that list.
Trichomoniasis is one of the most common STDs, with about 4 million new cases in the U.S. annually. Older women are more likely than younger women to have been infected.
For many reasons, sexually transmitted diseases are rising among older adults, with potentially serious health consequences.
Sexually transmitted diseases (STDs) are about twice as likely to be transmitted from a man to a woman as from a woman to a man.