People generally have a superficial understanding of hepatitis, and when they hear that someone has hepatitis, they are quickly linked to hepatitis B. In fact, in addition to hepatitis A and B, the family of hepatitis is well known. In fact, in the family of hepatitis, in addition to hepatitis A, hepatitis B is known, there is still “hepatitis C” in the mountains of the ‘big girl’ with the infection time will be extended to reveal the face of the great – cirrhosis, liver cancer. In recent years, with the improvement of detection means and people’s awareness of hepatitis C, hepatitis C medical history is more and more, but it is very good at hiding itself, almost no obvious clinical symptoms or mild performance and ignored, but he is not idle, unlike a breeze blowing without leaving a trace, but because of his “silent” overlap of other viruses that cause infection The rate of infection and death is higher than that of hepatitis B. Hepatitis A, B, and E are the most common viruses that cause hepatitis, and there are other causes of liver damage, and hepatitis C is one of the main offenders of hepatitis; in recent years, hepatitis C infection has become a concern, and there are about 10 million people with hepatitis C in China. The maximum use of hepatitis C is “silent” – no obvious weakness, nausea, yellow urine and other symptoms cover and more likely to become chronic, cirrhosis, liver cancer. It is necessary to understand the transmission route of hepatitis C. 1.People who have had blood and blood products transfusion or blood donors, venous drug addicts may be infected with hepatitis C through the input of blood and blood products contaminated with the virus; cross-contamination of blood collection and blood ball transfusion; sharing unclean syringes and lead to hepatitis C virus infection. 2, sexual contact transmission: this is an important way of hepatitis C transmission. 3.Mother-to-child transmission: Hepatitis C can be transmitted from mother to child, which is about 7.7-15.4%, lower than hepatitis B (70-90%). 4, other routes: 15-30% of disseminated hepatitis C without a history of blood transfusion or parenteral exposure, but detailed follow-up of medical history can be found in tattoos, ear piercing, tooth extraction, dental implants, pedicure, etc.. Some people do not have any of the above mentioned conditions, but only receive notification of failure during physical examination or blood donation and visit the hospital. There are also small clinical fluctuations in ALT that are explained by other reasons (fatty liver, alcohol consumption, fatigue, hepatitis B, etc.), according to some foreign data: for some special patients such as hemophiliacs, intravenous drug abusers, hemodialysis patients, their hepatitis C virus antibody positivity rate is 64%, 70% and 20%, respectively, significantly higher than the general population, homosexuality and sexually promiscuous also have a higher The incidence of hepatitis C is also higher in homosexual and sexually active patients. Because of the insidious nature of hepatitis C and the lack of awareness, patients are diagnosed with a history of infection that is several years old. The incubation period for hepatitis C is approximately 2-27 weeks, with a slightly shorter incubation period for infections caused by blood products. The hepatitis C virus enters the body and evades antibody immune forces and reacts with inflammation in the hepatocytes and can also manifest extrahepatically with symptoms such as dry syndrome, rash, and arthralgia. The diagnosis of hepatitis C requires HCV-RNA testing in addition to hepatitis C antibody testing, and genotyping for those with positive hepatitis C RNA, followed by antiviral therapy to clarify the drug regimen and dosage. For a small number of patients with hepatitis C who respond well to treatment, recovery is possible. However, systematic treatment under the guidance of an experienced specialist is essential and should not be used indiscriminately leading to adverse consequences. Factors influencing the progression of hepatitis C include alcohol abuse, smoking, exposure to toxic substances, obesity, and poor lifestyle habits. Patients with hepatitis C are cautioned to remember to stop smoking and drinking and to change their lifestyle habits as recommended by their doctor in order to stop the progression of the disease and achieve the desired results.