The presence of overlapping infection of HCV and HBV affects the prognosis of liver disease HCV infection in patients with chronic liver disease, especially dual infection of HBV and HCV, may accelerate the progression of liver disease. Viral hepatitis (viralhepatitis) is a group of infectious diseases caused by a variety of different hepatitis viruses, mainly liver damage, according to the pathogenic diagnosis, there are at least five types of hepatitis viruses, namely hepatitis A, B, C, D and E viruses, which cause viral hepatitis A, B, C, D and E, respectively, namely hepatitis A (hepatitis A), hepatitis B ( hepatitis B), hepatitis C), hepatitis D) and hepatitis E). Another type of viral hepatitis, called hepatitis G, is less common. What are the symptoms that are easily confused? 1, acute jaundice hepatitis Pre-jaundice: should be distinguished from upper respiratory tract infection, infectious mononucleosis, rheumatic fever and gastroenteritis. Jaundice period: should be distinguished from other diseases that can cause jaundice, such as drug-related hepatitis, leptospirosis, infectious mononucleosis, cholecystitis, cholelithiasis, etc. 2, no jaundice type hepatitis and chronic hepatitis should be distinguished from other diseases that can cause liver (spleen) enlargement and liver function impairment, such as chronic schistosomiasis, schistosomiasis, drug-related or toxic hepatitis, fatty liver, etc. 3, chronic hepatitis jaundice for a long time must be distinguished from hepatocellular carcinoma, bile duct cancer, pancreatic head cancer, etc. 4, heavy hepatitis should be distinguished from other causes of severe liver damage, such as drug poisoning, fulminant fatty liver, etc. In addition, in acute heavy hepatitis clinical jaundice is not obvious, should pay attention to and other causes of gastrointestinal hemorrhage, coma, neuropsychiatric symptoms to distinguish.