Herpes is a common viral infection caused by the herpes simplex virus (HSV). There are two main types: HSV-1, which typically causes oral herpes, and HSV-2, which usually leads to genital herpes. The virus can be transmitted through direct contact with an infected person, even when symptoms are not present. Once infected, the virus remains in the body for life, often lying dormant in nerve cells. Symptoms may include painful blisters or sores, but some people may not experience any noticeable signs. While there is no cure, antiviral medications can help manage outbreaks and reduce transmission risk.