There is no vaccine for HCV, and prevention of hepatitis C is mainly through screening and treatment of HCV-infected patients to cut off the transmission route. 1. Block transmission through blood and blood products Strengthen anti-HCV screening for blood donors and organ transplant donors to ensure that all blood and plasma used to manufacture blood products are free of HCV contamination. Use more sensitive testing methods to increase the positive rate of testing and improve the safety of blood use. 2. Prevent percutaneous or intravenous exposure infection Actively treat intravenous drug addicts to relieve their dependence on drugs, and at the same time provide them with safe and clean syringes to control HCV transmission; pay attention to personal hygiene, avoid sharing razors, toothbrushes, eyebrow trimmers, etc.; medical institutions implement disposable syringes, disposable items are destroyed in a timely manner, and non-disposable items are thoroughly cleaned and strictly disinfected to minimize exposure Risk. To reduce the transmission of HCV during hemodialysis, hemodialysis centers should strictly implement nosocomial infection control measures, adopt disposable dialyzers, strictly disinfect instruments, and set up special dialysis machines for HCV-positive patients in areas with a high prevalence of hepatitis C to reduce HCV transmission; hemodialysis patients should be routinely checked for anti-HCV or HCV RNA before dialysis, and liver function and HCV markers should be regularly monitored during dialysis. 3.Reduce the risk of sexual transmission Sex workers, gay men or multiple sexual partners should regularly measure anti-HCV and use condoms to prevent HCV infection; the use of condoms by sexual partners of HCV-infected patients can reduce HCV transmission. For women of childbearing age, it is recommended to check anti-HCV before preparing for pregnancy, if positive, HCV RNA should be checked, and those diagnosed with hepatitis C infection should be treated with antiviral therapy before pregnancy. Trials have proven that there is no difference between cesarean delivery and natural delivery for HCV transmission, while reducing fetal dew during delivery, shortening the delivery time after rupture of membranes, ensuring the integrity of the placenta, and reducing the exposure of the newborn to maternal blood will help reduce the risk of mother-to-child transmission. HCV-positive mothers may choose to breastfeed, as the benefits of breastfeeding outweigh the risk of possible HCV infection, but should avoid breastfeeding if the mother has a broken or bleeding nipple.