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  1. 11 Common Sexually Transmitted Infections (STIs)

    Apr 16, 2025 · Worldwide, there are over 20 sexually transmitted infections (STIs) caused by bacteria, viruses, and parasites. Several like gonorrhea, chlamydia, genital herpes, HPV, and …

  2. Sexually transmitted diseases (STDs) - Symptoms and causes

    Sexually transmitted diseases (STDs) are caused by sexually transmitted infections (STIs). They are spread mainly by sexual contact. STIs are caused by bacteria, viruses or parasites. A …

  3. Sexually Transmitted Diseases: Types, Symptoms, Treatment

    Sep 18, 2025 · Some sexually transmitted infections (STIs) can lead to pelvic inflammatory disease (PID), anal or genital warts, and certain cancers. All STDs are caused by an STI. STIs …

  4. About Sexually Transmitted Infections (STIs) | STI | CDC

    Mar 25, 2024 · A sexually transmitted disease (STD) develops because of an STI and the term implies that the infection has led to some symptom of disease. People sometimes use the …

  5. Sexually Transmitted Diseases (STDs): Causes, Tests,

    Oct 14, 2024 · STDs are sexually transmitted diseases. This means they are most often, but not exclusively, spread by sexual contact. STDs used to be called venereal diseases (VD). …

  6. Sexually Transmitted Infections | STIs | Venereal Disease

    Jul 15, 2025 · Sexually transmitted infections (STIs) are infections that are passed from one person to another through sexual contact. If not treated, a STI can develop into a sexually …

  7. Sexually transmitted infections (STIs)

    Sep 10, 2025 · STIs have a direct impact on sexual and reproductive health through stigmatization, infertility, cancers and pregnancy complications and can increase the risk of …

  8. Sexually Transmitted Diseases (STDs)

    What is an STD? Sexually transmitted diseases (STDs) or sexually transmitted infections (STIs) are infectious diseases spread through sexual contact. These infections are very common, …

  9. Sexually Transmitted Infections (Sexually Transmitted Diseases)

    Feb 3, 2023 · Sexually transmitted infections (STI) are infections or conditions that you can get from any kind of sexual activity involving your mouth, anus, vagina or penis. Another common …

  10. Sexually Transmitted Diseases (Overview) - Harvard Health

    Sep 26, 2024 · There are many different STDs, but the most common ones in the United States are herpes simplex virus type II (genital herpes), human papilloma virus, chlamydia, …