infections
Overview of Sexually Transmitted Infections (STIs)
Causes of STIs
Many infectious organisms—from tiny viruses, bacteria, and parasites to visible insects (such as lice)—can be spread through sexual contact. Some infections that can be transmitted during sexual contact are usually spread in other ways. Thus, they are not typically considered STIs. These infections include Overview of Acute Viral Hepatitis A, B, and C and infections of the digestive tract (which cause diarrhea), such as Although STIs usually result from having vaginal, oral, or anal sex with an infected partner, genital penetration is not necessary to spread an infection. Some STIs can also be spread in other ways, including Kissing or close body contact—for Pubic lice , From mother to child during pregnancy or during birth—for Syphilis , Breastfeeding—for HIV infection Contaminated medical instruments—for HIV infection 