Hepatitis B is a viral infection that affects the liver. It can be acute or chronic and can lead to serious liver damage if left untreated. 

Some common symptoms of hepatitis B include fatigue, fever, abdominal pain, and jaundice. It can be transmitted through contact with infected blood, bodily fluids, or from mother to child during birth. 

While there is no cure for hepatitis B, there are treatments available that can help manage the virus and prevent liver damage. These treatments include antiviral medications and regular monitoring of liver function.