Sexually transmitted diseases (STDs) or sexually transmitted infections (STIs) are a type of infection that is spread through sexual contact. These infections can be caused by bacteria, viruses, or parasites, and can be passed from person to person through blood, semen, vaginal fluids, and other body fluids. STDs can be transmitted through vaginal, oral, or anal sex, as well as through intimate physical contact such as intense caressing. It is important to note that some STDs, such as herpes and HPV, are spread through skin-to-skin contact.
This means that even if there is no penetration involved in the sexual contact, the infection can still be passed on. It is important to practice safe sex in order to reduce the risk of contracting an STD. This includes using condoms during sexual intercourse and avoiding contact with any bodily fluids. It is also important to get tested regularly for STDs in order to ensure that any infections are caught early and treated promptly.