In-depth

Alcoholic hepatitis

Alcohol can severely damage your liver — even moderate drinkers aren't immune. Learn more about this serious liver disease.

Cirrhosis

Alcohol abuse and hepatitis C infection are the leading causes of cirrhosis — a life-threatening condition that leads to irreversible liver scarring.

Cryptosporidium infection

Cryptosporidium infection may cause diarrhea in healthy people, but for people with HIV/AIDS and weakened immune systems, the illness can cause serious complications.

Ehrlichiosis

Ehrlichiosis is a tick-borne disease that causes flu-like symptoms. When you're outdoors, be aware of steps to prevent tick bites.

Enlarged spleen

An enlarged spleen is usually a sign of an underlying problem. Treatment varies, depending on what's causing the enlargement.

Eye melanoma

Although melanoma is commonly a type of skin cancer, it can also occur in your eye. Eye exams can often detect this rare cancer.

Gilbert's syndrome

Gilbert's syndrome is a mild liver condition that causes slightly higher levels of bilirubin in your blood, but no ill effects.

Hemochromatosis

Hemochromatosis causes your body to store large amounts of iron, which can cause life-threatening complications. The simple treatment is to regularly remove blood.

Hepatitis B

Having hepatitis B increases your risk of serious liver disease. Protect yourself with a hepatitis B vaccine.

HIV/AIDS

More than 39 million people are living with HIV — the virus that causes AIDS. Millions more are likely to become infected in the next decade.

Lupus

Lupus is a chronic disease that can affect your skin, joints and organs. With proper care, most people with lupus live relatively active, healthy lives.

Nonalcoholic fatty liver disease

Nonalcoholic fatty liver disease is associated with obesity and diabetes. Lifestyle changes may prevent it from becoming serious.

Primary sclerosing cholangitis

Primary sclerosing cholangitis causes inflammation and scarring within the bile ducts of your liver, eventually affecting your liver's ability to do its job properly.

Wilson's disease

In Wilson's disease, the body doesn't metabolize copper properly, causing excess amounts to accumulate in the liver and other organs.

Sep. 26, 2012