Sexually transmitted infections

Definition

Sexually transmitted infections (STIs) are infections primarily spread through sexual contact. They can affect the urogenital tract and other parts of the body.

5 Must Know Facts For Your Next Test

1. STIs can be caused by bacteria, viruses, fungi, or parasites.
2. Common bacterial STIs include chlamydia, gonorrhea, and syphilis.
3. Viral STIs include human immunodeficiency virus (HIV), herpes simplex virus (HSV), and human papillomavirus (HPV).
4. Some STIs are asymptomatic but can still be transmitted to others and cause severe complications if untreated.
5. Preventative measures include condom use, vaccination (e.g., HPV), and regular screening.

Review Questions

• What types of pathogens can cause sexually transmitted infections?
• Name three common bacterial STIs and three viral STIs.
• What are some preventative measures for reducing the risk of acquiring an STI?

Related terms

Chlamydia:

A common bacterial STI caused by Chlamydia trachomatis that can lead to serious reproductive issues if untreated.

Human Papillomavirus (HPV): A viral infection that can cause genital warts and is linked to cervical cancer.

Condoms: Barrier devices used during sexual intercourse to reduce the risk of STI transmission.