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Disease

Fetal alcohol syndrome

This condition results from alcohol exposure before birth. The exposure causes lifelong problems with behavior, learning, thinking and physical development.
Disease

Focal segmental glomerulosclerosis (FSGS)

Learn about focal segmental glomerulosclerosis (FSGS), how it's diagnosed and treated.
Disease

Frontal lobe seizures

In this common form of epilepsy, the seizures stem from the front of the brain. They can produce symptoms that appear to be from a mental illness.
Disease

Frozen shoulder

This painful condition usually begins gradually and makes the shoulder hard to move. Exercises can help restore range of motion.
Disease

Gastrointestinal stromal tumor (GIST)

Learn about this type of cancer that usually happens in the stomach or small intestine. Treatments often include surgery and targeted therapy.
Disease

Gilbert syndrome

This inherited liver condition affects the liver's ability to break down red blood cells. It usually has no serious medical consequences.
Disease

Group B strep disease

This common type of bacteria is often harmless in healthy adults. But it can cause serious illness in newborns and adults with certain long-term conditions, such as diabetes.
Disease

Guillain-Barre syndrome

This rare autoimmune condition affects the nerves, causing weakness and tingling in the arms and legs that quickly spreads throughout the body.
Disease

H1N1 flu (swine flu)

Find out more about flu caused by the H1N1 virus. Learn how to prevent and treat the flu.
Disease

Hantavirus pulmonary syndrome

Learn about the rodent-transmitted virus that causes severe — and sometimes fatal — lung disease with flu-like symptoms that can rapidly worsen.
Disease

Hemifacial spasm

Learn about diagnosis and treatment of this nervous system condition that causes muscles to twitch on one side of the face.
Disease

Hemolytic uremic syndrome (HUS)

Damage to the small blood vessels in the kidneys can cause clots that clog the organ's filtering system. This can lead to life-threatening kidney failure.

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