
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 …
About Sexually Transmitted Infections (STIs) | STI | CDC
Mar 25, 2024 · A sexually transmitted infection (STI) is a virus, bacteria, fungus, or parasite people can get through sexual contact. A sexually transmitted disease (STD) develops …
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, …
Sexually transmitted infections (STIs)
Sep 10, 2025 · WHO fact sheet on sexually transmitted diseases (STIs), providing information on the scope of the problem, prevention, diagnosis, treatment, and WHO's work in this area.
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 …
Sexually Transmitted Infections (Sexually Transmitted Diseases)
Feb 3, 2023 · What is a sexually transmitted infection (sexually transmitted disease)? Sexually transmitted infections (STI) are infections or conditions that you can get from any kind of …
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 …
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 …
Sexually Transmitted Diseases (Overview) - Harvard Health
Sep 26, 2024 · Sexually transmitted diseases (STDs) are infections that are spread from person to person through sexual contact, including oral sex, anal sex and the sharing of sex toys.
Types of Sexually Transmitted Diseases (STDs) - Health
Oct 1, 2025 · Untreated STDs can lead to severe health complications like infertility and cancer. An STD (sexually transmitted disease) is a condition that develops due to a virus, bacteria, or...