Britannica Sources used in this answer

How does abstinence help prevent sexually transmitted infections?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

sexually transmitted disease Scanning electron micrograph of the spirochete *Treponema pallidum* attached to testicular cell membranes.

Abstinence is defined as the voluntary restraint from sexual intercourse. It serves as a primary strategy for preventing the transmission of sexually transmitted diseases (STDs), also known as sexually transmitted infections (STIs).123

Because most STDs are transmitted primarily through direct sexual contact—involving the exchange of bodily fluids or contact with mucous membranes in the genitals, anus, or mouth—abstinence effectively eliminates the physical interaction required for these pathogens to spread between partners. While other "safe sex" practices, such as the use of condoms, reduce the risk of infection, they are not 100 percent effective. In contrast, abstinence is considered a completely safe practice for preventing the transmission of these infections.234

By choosing to abstain from sexual activity, individuals remove the primary route of transmission for a wide range of microbial agents, including those responsible for syphilis, gonorrhea, HIV/AIDS, and chlamydia.23