Hepatitis is caused by viruses
Hepatitis caused by a virus is called viral hepatitis. The virus gets into the bloodstream and then goes to the liver. A person can get sick from a number of viruses , such as hepatitis A, B, C, D, or E. Most of the time, symptoms show up 3–10 days after a virus gets into the body. During this time, the urine turns darker and jaundice starts to show. Inflammation is how your immune system reacts to damage caused by viruses, bacteria, or other irritants. It helps get rid of what caused the injury, gets rid of dead or damaged cells, and starts the healing process. The process of inflammation is controlled by immune cells that live in the body, like macrophages, dendritic cells, histiocytes, and Kupffer cells. They find pathogen-associated molecules (PAMPs) and damage-associated molecules (DAMPs) and bind to them. When the inflammation is bad, it kills liver cells and makes scar tissue that messes up the normal structure of the liver lobules. This is called "bridging necrosis,...