Hepatitis C refers to a disease in which liver inflammation occurs due to the body's immune response to infection with the hepatitis C virus (HCV). Symptoms include fatigue, loss of appetite, nausea, and vomiting. Muscle pain and low-grade fever may occur, urine color may become darker, and in severe cases, jaundice may occur where the skin or eyes turn yellow, and in fatal cases, death may occur. Hepatitis C is transmitted through body fluids such as blood infected with the hepatitis C virus. You can become infected through sexual contact, blood transfusion, medicine using blood, reuse of contaminated syringes, use of unsterilized needles, piercing, or tattooing. After the hepatitis C virus invades the blood through this route, the virus mainly exists in liver cells. Our body produces an immune response to eliminate these viruses that have infected cells, which destroys liver cells and causes inflammation in the liver.