A50-A64: Infections with a predominantly sexual mode of transmission

A60: Anogenital herpesviral [herpes simplex] infection

The Anogenital herpesviral [herpes simplex] infection, as the name suggests, refers to a group of infectious diseases caused by the herpes simplex virus (HSV). This virus targets the anogenital area, or the region involving the anus and the genitalia. There are two types of this virus: HSV-1 often causes oral herpes, leading to cold sores or fever blisters around the mouth; meanwhile HSV-2 is usually responsible for genital herpes. Transmission of the virus happens through close physical contact, particularly sexual activity. Symptoms may include small, painful blisters, open sores, and itching or tingling sensations in the affected area. Initially, you may also experience flu-like symptoms, including fever and swollen glands. However, it's also common for individuals to have no symptoms, unknowingly spreading the virus. Once infected, the virus remains in the body, leading to potential future outbreaks, especially during periods of stress or weakened immunity.