The liver fights infections and stops bleeding. It removes drugs and other poisons from your blood. The liver also stores energy for when you need it. Hepatitis C is caused by a virus. A virus is a germ that causes sickness.
People can pass viruses to each other.
The virus that causes hepatitis C is called the hepatitis C virus. You could get hepatitis C by sharing drug needles. Hepatitis C spreads by contact with an infected person's blood. Before 1992, doctors could not check blood for hepatitis C, and some people received infected blood. Many people with hepatitis C don't have symptoms.