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  1. 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 …

  2. Sexually transmitted infection - Wikipedia

    A sexually transmitted infection (STI), also referred to as a sexually transmitted disease (STD) and the older term venereal disease (VD), is an infection that is spread by sexual activity, …

  3. STD Pictures: Herpes, Genital Warts, Gonorrhea, STD Symptoms, …

    Feb 15, 2025 · Anyone who is sexually active is at risk for an STD, regardless of gender, race, social class, or sexual orientation. That said, teenagers and young adults acquire STDs more …

  4. List of all STDs and their Symptoms - STDs Information

    Mar 28, 2017 · Sexually Transmitted Diseases are the ones that are easily passed from one person to another, cause various complications and are sometimes difficult or impossible to …

  5. Sexually Transmitted Diseases: Types, Symptoms, Treatment

    Apr 11, 2023 · All STDs are caused by an STI. These infections are usually transmitted through sexual contact, including through bodily fluids or skin contact via vaginal, oral, and anal sex. …

  6. 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 …

  7. 11 Common Sexually Transmitted Infections (STIs)

    Apr 16, 2025 · Human papillomavirus (HPV) is thought to be the most common STI overall.

  8. What Are STDs? | Sexually Transmitted Diseases Information

    STDs are infections that are spread from one person to another, usually during vaginal, anal, and oral sex. They’re really common, and lots of people who have them don’t have any symptoms. …

  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 - What You Need to Know

    Jun 30, 2025 · An STD means signs or symptoms of a sexually transmitted infection (STI) have developed. An STI happens when bacteria or a virus are spread through oral, genital, or anal sex.