Sexually Transmitted Diseases - Information from CDC

Sexually Transmitted Diseases (STDs)

STI Overview: One in five people in the U.S. have an STI totaling nearly 68 million STIs in 2018. There were 26 million new STIs in 2018; almost half of new STIs are among youth aged 15-24 in the U.S. New STIs total nearly $16 billion in direct medical costs.

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The latest additions, as well as new resources and programs.

Adolescents & Young Adults

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15-24 year olds account for almost half of all new STD infections.

Gay, Bisexual & Other MSM

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Men who have sex with men have higher rates of STDs.

STDs during Pregnancy

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For a healthier baby, ask your doctor about STD testing.

Key Resources

STD Surveillance Report

STD Surveillance 2018

STD Treatment Guidelines 2015

Treatment Guidelines

STD Fact Sheets

STD Fact Sheets

Just Diagnosed?

Just Diagnosed?

STD Risk & Oral Sex

STD Risk & Oral Sex

Enfermedades de transmisión sexual (ETS)

Spanish Version

Data & Statistics

Laboratory Information

Program Management & Evaluation Tools

Projects & Initiatives

Tools & Materials

Diseases and Related Conditions

There are dozens of STDs. Some STDs, such as syphilis, gonorrhea, and chlamydia, are spread mainly by sexual contact. Other diseases, including Zika and Ebola, can be spread sexually but are more often spread through ways other than sex.

About the Division of STD Prevention (DSTDP)

Page last reviewed: January 28, 2021

Content source: Division of STD Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention