Background: In a liver biopsy, a small piece of liver is removed. A percutaneous liver biopsy (PLB) is done through a needle on the right side of your belly. In a transjugular liver biopsy (TLB), the right side of the neck is numbed and a straw-like tube is put in. The tube goes down to your liver and a piece of liver is removed. Researchers want to learn more about the pain people feel after each of these procedures.