Fitness basics
Learning Center
Genital herpes
This sexually transmitted infection can't be cured. Learn how it can be managed and how to prevent the spread of infection.
Renal artery stenosis
Read more about what happens when the arteries leading to your kidneys become narrowed, as well as potential treatments for this condition.
Hypereosinophilic syndrome
Hypereosinophilic syndrome is a disorder of certain types of white blood cells that can cause life-threatening damage to your organs.
Acute liver failure
A rapid loss of liver function can occur in people who don't even have liver disease. Find out about symptoms, treatment and prevention of this serious medical emergency.
REM sleep behavior disorder
REM sleep behavior disorder is a sleep disorder in which you physically and vocally act out vivid, often unpleasant dreams during REM sleep.
Paraganglioma
Learn about this rare tumor that begins in nerve cells and sometimes causes high blood pressure. It's usually benign but sometimes spreads.
Schwannoma
Learn about the diagnosis and treatment of this usually benign, slow-growing tumor that begins in peripheral nerve cells.
Neurofibroma
Learn about this type of peripheral nerve tumor that can appear anywhere in the body, forming soft bumps on or under the skin.
Voice disorders
Learn more about the causes of common voice disorders, such as laryngitis and granuloma, and how Mayo Clinic diagnoses and treats them.
Smallpox
Learn about the symptoms, causes and vaccine prevention of this contagious, disfiguring and sometimes fatal viral disease.
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