Sexually transmitted diseases (STDs)


Free

E-newsletter

Subscribe to Housecall

Our weekly general interest
e-newsletter keeps you up to date on a wide variety of health topics.

Sign up now

Definition

By Mayo Clinic staff

Sexually transmitted diseases (STDs), or sexually transmitted infections (STIs), are generally acquired by sexual contact. The organisms that cause sexually transmitted diseases may pass from person to person in blood, semen, or vaginal and other bodily fluids.

Some such infections can also be transmitted nonsexually, such as from mother to infant during pregnancy or childbirth, or through blood transfusions or shared needles.

It's possible to contract sexually transmitted diseases from people who seem perfectly healthy — people who, in fact, aren't even aware of being infected. Many STDs cause no symptoms in some people, which is one of the reasons experts prefer the term "sexually transmitted infections" to "sexually transmitted diseases."

Symptoms
References
  1. Sexually transmitted infections: Overview. U.S. Department of Health and Human Services Office on Women's Health. http://womenshealth.gov/publications/our-publications/fact-sheet/sexually-transmitted-infections.cfm. Accessed Nov. 23, 2012.
  2. Sexually transmitted infections. World Health Organization. http://www.who.int/mediacentre/factsheets/fs110/en/index.html. Accessed Nov. 23, 2012.
  3. Fortenberry JD. Sexually transmitted diseases: Overview of issues specific to adolescents. http://www.uptodate.com/index. Accessed Nov. 23, 2012.
  4. A Guide to Drinking Water Treatment and Sanitation for Backcountry & Travel Use. Centers for Disease Control and Prevention. http://www.cdc.gov/healthywater/drinking/travel/backcountry_water_treatment.html. Accessed Nov. 23, 2012.
  5. Swygard H, et al. Screening for sexually transmitted infections. http://www.uptodate.com/index. Accessed Nov. 23, 2012.
  6. STD trends in the United States: 2010 national data for gonorrhea, chlamydia, and syphilis. Centers for Disease Control and Prevention. http://www.cdc.gov/std/stats10/trends.htm. Accessed Nov. 23, 2012.
  7. Centers for Disease Control and Prevention, et al. Revised Recommendations for HIV Testing of Adults, Adolescents, and Pregnant Women in Health-Care Settings. MMWR. 2006; 55;1. http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5514a1.htm. Accessed Nov. 25, 2012.
  8. Screening tests for women. U.S. Department of Health and Human Services Office on Women's Health. http://www.womenshealth.gov/screening-tests-and-vaccines/screening-tests-for-women/index.html. Accessed Nov. 25, 2012.
  9. CDC fact sheet: Genital HPV infection. Centers for Disease Control and Prevention. http://www.cdc.gov/std/HPV/STDFact-HPV.htm. Accessed Nov. 25, 2012.
  10.  Centers for Disease Control and Prevention, et al. Sexually transmitted diseases treatment guidelines, 2010. MMWR. 2010;59:1. http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5912a1.htm. Accessed Nov. 25, 2012.
  11. CDC fact sheet: Genital herpes. Centers for Disease Control and Prevention. http://www.cdc.gov/std/Herpes/STDFact-Herpes.htm. Accessed Nov. 25, 2012.
  12. Guidelines for the use of antiretroviral agents in HIV-1-infected adults and adolescents. U.S. Department of Health and Human Services. http://aidsinfo.nih.gov/guidelines/html/1/adult-and-adolescent-arv-guidelines/0/. Accessed Nov. 25, 2012.
  13. Partner services FAQs. Centers for Disease Control and Prevention. http://www.cdc.gov/nchhstp/partners/faq-public.html. Accessed Nov. 25, 2012.
  14. Truvada approved to reduce the risk of sexually transmitted HIV in people who are not infected with the virus. U.S. Food and Drug Administration. http://www.fda.gov/forconsumers/byaudience/forpatientadvocates/hivandaidsactivities/ucm312264.htm. Accessed Nov. 25, 2012.
  15. Condoms and STDs: Fact sheet for public health personnel. Centers for Disease Control and Prevention. http://www.cdc.gov/condomeffectiveness/latex.htm. Accessed Nov. 25, 2012.
  16. Steckelberg JM (expert opinion). Mayo Clinic, Rochester, Minn. Dec. 3, 2012.
  17. Rizza SA (expert opinion). Mayo Clinic, Rochester, Minn. Dec. 4, 2012.
DS01123 Feb. 23, 2013

© 1998-2013 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. A single copy of these materials may be reprinted for noncommercial personal use only. "Mayo," "Mayo Clinic," "MayoClinic.com," "EmbodyHealth," "Enhance your life," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.

  • Reprints
  • Print

  • Share on:

  • Email

Advertisement


Text Size: smaller largerlarger