What do drugs, alcohol, unprotected sex, tattoos, and body piercings have in common? They're all things your parents might lecture you about avoiding, but there's another connection: They can all lead to a liver condition called hepatitis.
The liver is one of the body's powerhouses. It helps process nutrients and metabolizes medicines. The liver also helps clear the body of toxic waste products.
The word hepatitis means an inflammation of the liver. It can be caused by one of many things — including a bacterial infection, liver injury caused by a toxin (poison), and even an attack on the liver by the body's own immune system. However, hepatitis usually is caused by a virus. The three most common hepatitis viruses are hepatitis A, hepatitis B, or hepatitis C. Two other types of hepatitis virus, D and E, are rare in the United States.
Some hepatitis viruses can mutate. That can make them hard for for the body to fight because they change over time. In some cases, hepatitis B or C can destroy the liver. The patient then will need a liver transplant to survive, an option that is not always available or successful.
The hepatitis A virus (HAV) is transmitted through the feces (poop) of infected individuals. People usually get hepatitis A by eating food or drinking water that's been contaminated with feces. As disgusting as that sounds, though, hepatitis A is actually considered less destructive than some other hepatitis viruses.
Unlike some other hepatitis viruses, hepatitis A rarely leads to permanent liver damage. Within a few weeks, the symptoms will have gone away on their own and the virus will no longer be in a person's system. Once someone has recovered from a hepatitis A infection, that person has immunity to the virus, meaning he or she will probably never get it again. People are also protected against hepatitis A if they've been vaccinated against it.
Hepatitis B is a more serious infection. It may lead to a condition called cirrhosis (permanent scarring of the liver) or liver cancer, both of which cause severe illness and even death. Hepatitis B virus (HBV) is transmitted from person to person through blood or other body fluids.
In the United States, the most common way people get infected with HBV is through unprotected sex with someone who has the disease. People who share needles also are at risk of becoming infected because it's likely that the needles they use will not have been sterilized.
There's no effective cure for hepatitis B, although people who have had the hepatitis B vaccine are protected against it. In most cases, teens who get hepatitis B will recover from the disease and may develop a natural immunity to future hepatitis B infections. But some people will have the condition forever. Medicines can help some people with hepatitis B get rid of the virus.
The hepatitis C virus (HCV) is transmitted from person to person through blood or other body fluids. Like hepatitis B, hepatitis C can lead to cirrhosis or liver cancer.
Hepatitis C is the most serious type of hepatitis. It's now one of the most common reasons for liver transplants in adults. Every year, thousands of people in the United States die from HCV. And there's no cure and no vaccine.
An estimated 4.1 million Americans are currently infected with the virus. The most common way people become infected is through sharing drug paraphernalia such as needles and straws. People also get hepatitis C after having unprotected sex with an infected partner. Before 1990, many people got it through blood transfusions, but better blood screening and handling procedures now mean that this rarely happens. Sometimes, mothers with hepatitis C pass the virus along to their babies during birth.
The medicines currently used to treat hepatitis C are effective in controlling the disease in some people. However, hepatitis C treatments are not very easy to take, especially because some require frequent injections.
Hepatitis infection causes inflammation of the liver, which means that the liver becomes swollen and damaged and begins losing its ability to function. People with hepatitis often get symptoms similar to those caused by other virus infections, such as weakness, tiredness, and nausea. Because the symptoms of hepatitis are similar to those from other conditions, it's easy for someone who has it to confuse it with another illness.
In addition, people with hepatitis A may not show any symptoms, so the infection can go undiagnosed. People with hepatitis B or C infection also may not show symptoms right away, but can develop health problems from the infection many years later. Even when infected people don't have any symptoms, they can still pass the disease on to others.
Symptoms of hepatitis include:
The incubation period for hepatitis (how long it takes from when someone is infected to when symptoms first appear) varies — some people might not feel any different, while others may notice symptoms anywhere from 15 days to 4 months after getting the disease, depending on the type of hepatitis.
A blood test is usually needed to find out if a person has hepatitis.
Doctors don't prescribe medicine to treat hepatitis A; they usually recommend resting until any fever and jaundice are gone and the person's appetite has returned to normal. It is also important to stay well hydrated by drinking lots of fluids.
Hepatitis B and C can sometimes be treated with medicines, although some kinds of medicine used to treat hepatitis C are only approved for use in adults. Although treatments for hepatitis B and C are becoming more effective, a cure cannot be guaranteed.
Vaccines can protect people against hepatitis A and hepatitis B. Today, all kids in the United States are routinely vaccinated against hepatitis B at birth and against hepatitis A when they're between 1 and 2 years old.
Doctors recommend that the hepatitis A vaccine be given to anyone who wants to be immunized against the condition. It's important for people who travel to parts of the world where sanitation isn't very good to be immunized. Doctors also recommend the vaccine for anyone who is more at risk of getting hepatitis A, like people with blood clotting disorders or liver disease, or who use intravenous drugs. Men who have sex with men are also at more risk of hepatitis A infection and should get the vaccine.
If someone has been recently exposed to hepatitis A or B, a doctor may recommend a shot of immune globulin containing antibodies against the virus. This can help prevent the person from coming down with the disease.
In addition to getting vaccinations against hepatitis A and B, here's how to protect yourself against hepatitis virus infection:
Hepatitis infection can be serious, but knowing what puts you at risk can help protect you.
Reviewed by: Elana Pearl Ben Joseph, MD
Date reviewed: February 2014
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