Nausea in hepatitis B patients is usually due to abnormal liver function, and it is only after a period of time that the abnormality occurs that gastrointestinal and digestive symptoms occur, nausea being one of them. Because liver function impairment can occur in acute hepatitis B, it can also occur in chronic hepatitis B, and it can also occur when hepatitis B leads to cirrhosis, so nausea alone cannot determine whether a hepatitis B patient is in a state of cirrhosis, and it cannot be judged accurately. It is very likely that the nausea of hepatitis B patients is not caused by the hepatitis B virus, because nausea belongs to the gastrointestinal tract symptoms, when the gastrointestinal tract disease, or even when eating too much food leading to indigestion, may appear nausea, and can not be judged by this symptom to what stage of hepatitis B, but should be judged by liver ultrasound, liver function and other items.