Hepatitis C is transmitted through the following routes: 1. Blood and blood product transfusion is the main route of transmission of hepatitis C. 2. Mother-to-child transmission and sexual transmission have also been confirmed. 3. The proportion of intravenous drug users has increased in recent years, and sharing of syringes has led to an increasing proportion of hepatitis C transmission. 4. The transmission of hepatitis C virus. Therefore, self-protection during operation and strict sterilization of instruments are the keys to prevent the transmission of hepatitis C.