What kind of diseases is hepatitis B?

Hepatitis B is a liver infection caused by the hepatitis B virus (HBV). It can cause a range of health problems, from a mild illness lasting a few weeks to a serious lifelong infection.

Acute hepatitis B is the initial phase of the infection, and it usually lasts for up to 6 months. Symptoms can include:

* Fatigue

* Nausea

* Vomiting

* Abdominal pain

* Dark urine

* Light-colored stools

* Joint pain

* Fever

* Loss of appetite

Chronic hepatitis B is a long-term infection that can last for years or even decades. It can lead to serious liver problems, including:

* Liver cirrhosis: This is a condition in which the liver is damaged and scarred. It can lead to liver failure and death.

* Liver cancer: This is a type of cancer that starts in the liver. It is the most common type of cancer caused by hepatitis B.

Hepatitis B can also lead to other health problems, including:

* Kidney disease

* Pancreatitis

* Autoimmune disorders

* Increased risk of heart disease and stroke

Hepatitis B is a serious infection, but it can be prevented with a vaccine. The vaccine is safe and effective, and it is recommended for all infants, children, and adults.