Sexually Transmitted Diseases (STDs)

Sexually transmitted diseases (STDs) are caused by sexually transmitted infections. They are passed from one person to another during sexual or intimate contact. More than half of all of us will get a sexually transmitted infection at some time in our lives.

Sexually transmitted infections may or may not cause symptoms. Medically, an infection is called a disease only when it is causing symptoms. But it’s very common for people to use the terms "sexually transmitted diseases" or "STDs," whether or not symptoms are present.

Reading about the different kinds of STDs can be helpful, whether you may have an STD or are just curious about STDs. Use the list above to find out about each kind of STD.

Most of us want to protect ourselves and each other from STDs. Practicing safer sex allows us to reduce our risk of sexually transmitted diseases. And if we’ve done anything that puts us at risk of infection, getting tested allows us to get any treatments we may need.

We are here to help. The caring staff at your local Planned Parenthood health center can talk with you about STDs and help you get any testing or treatment you may need.