Hepatitis C (hep C) is a viral disease that affects the liver. The liver is an organ in the human body that converts everything you eat or drink into nutrients and gets rid of toxins. There is a connection between hepatitis C and kidney disease. Hep C can cause kidney disease, and sometimes kidney patients can get hep C from hemodialysis, a treatment for kidney failure, if a medical facility does not carefully follow guidelines for infection control. Learn why every kidney patient should be tested for hepatitis C.