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Sexually Transmitted Diseases

What are sexually transmitted infections (STIs)?

Sexually transmitted infections (STIs), or sexually transmitted diseases (STDs), are infections that are passed from one person to another through sexual contact. They are usually spread during vaginal, oral, or anal sex. But sometimes they can spread through other sexual contact involving the penis, vagina, mouth, or anus. This is because some STIs, like herpes and HPV, are spread by skin-to-skin contact.

Some STIs can be passed from a pregnant person to the baby, either during pregnancy or when giving birth. Other ways that some STIs may be spread include during breastfeeding, through blood transfusions, or by sharing needles.

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Results 1 - 10 of 555 for STD
  1. Sexually Transmitted Infections (National Library of Medicine)  
    ... Sexually transmitted infections (STIs), or sexually transmitted diseases (STDs), are infections that are passed from one person ...
  2. STD Tests What are STD tests? STDs ( sexually transmitted diseases ) are infections that are mostly spread through sexual activity, including vaginal, oral, and anal sex. ...
  3. Donovanosis (granuloma inguinale) is a sexually transmitted disease (STD) that is rarely seen in the United States. ... is the only absolute way to prevent an STD such as donovanosis. However, safer sex behaviors may ...
  4. What Are the Treatments for Sexually Transmitted Diseases and Sexually Transmitted Infections (STDs/STIs)? From the National Institutes of Health (Eunice Kennedy Shriver National Institute of Child Health and Human Development)  
    STDs/STIs caused by bacteria or parasites can be treated with antibiotics. These antibiotics are most often ...
  5. What Are Some Types of and Treatments for Sexually Transmitted Diseases (STDs) or Sexually Transmitted Infections ... From the National Institutes of Health (Eunice Kennedy Shriver National Institute of Child Health and Human Development)  
    Approximately 20 different infections are known to be transmitted through sexual contact. Although NICHD does study STIs, their prevention, and their ...
  6. Sexually Transmitted Diseases (STDs) From the National Institutes of Health (Eunice Kennedy Shriver National Institute of Child Health and Human Development)  
    STDs, also known as sexually transmitted infections (STIs), are typically caused by bacteria or viruses and are ... penis, vagina, anus, or mouth. The symptoms of STDs/STIs vary between individuals, depending on the cause, ...
  7. How Can Men Reduce the Risk of Getting a Sexually Transmitted Disease (STD)? From the National Institutes of Health (Eunice Kennedy Shriver National Institute of Child Health and Human Development)  
    Men can take measures to avoid STDs by knowing a partner's STD and health history, speaking with a healthcare provider about risks and testing, practicing safe sex, and getting ...
  8. FastStats: Sexually Transmitted Diseases (STD) (National Center for Health Statistics)  
    Chlamydia Infections/Statistics and Research ... Chlamydia Infections ... Sexually Transmitted Infections/Statistics and Research ... Sexually Transmitted Infections ...
  9. Trichomoniasis (National Library of Medicine)  
    Trichomoniasis is a sexually transmitted disease caused by a parasite. It spreads from person to person during sex. Many people do not have any symptoms. If you do ...
  10. Many sexually-transmitted diseases (STDs) invade the host and reside for long periods of time without killing the host. A good example is syphilis, which ...
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