The question “Have you ever had hepatitis?” isn’t always easy to answer. There are several different types, each with its own letter; they’re transmitted in different ways; some are curable while others aren’t. But the details are important. If you’ve had hepatitis in the past, this could influence the choice of treatment for HIV. If you haven’t, there are practices and, sometimes, vaccines that can prevent you from becoming infected. This article looks at the three most common types of viral hepatitis, all of which can be detected and evaluated using simple blood tests.