RARE DISEASES

Rare diseases may not be common, but they are no less painful or difficult than conditions you've heard of. Learn about the causes and symptoms of rare diseases as well as how patients can find treatments for their unusual conditions.
How much do you know about bizarre conditions?
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The Ultimate Diagnosis Quiz

Play doctor in our ultimate diagnosis quiz! Test your medical knowledge, and see how much you know about rare medical disorders.

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  • 10 Bizarre Medical Conditions

    10 Bizarre Medical Conditions

    Let's say you have a collection of baffling physical symptoms. You know something is very wrong with your body, but no one seems to be able to figure it out. Welcome to the doctor's visit of someone with a medical condition you've never even heard of. See more »

  • What are the world's rarest diseases?

    What are the world's rarest diseases?

    What if you were the only person in the world with a disease, and scientists used your name to classify it? How would doctors know what was wrong? See more »

  • 12 Deadly Diseases Cured in the 20th Century

    12 Deadly Diseases Cured in the 20th Century

    There are times when it feels like a pretty lucky thing to be living in the 21st century -- diseases like polio and smallpox took countless lives before a cure was found. Read our list of 12 diseases that were cured in the 20th century. See more »

  • 20 Diseases You've Probably Never Heard Of

    20 Diseases You've Probably Never Heard Of

    There are many diseases out there you've never heard of. We've put together the top 20 diseases you've probably never heard of that are rare and unusual. See more »

  • Bizarre Medical Conditions Quiz

    Bizarre Medical Conditions Quiz

    Some medical conditions are so bizarre it's hard to believe they're not made up. See if you can answer the questions below about some bizarre medical conditions that seem almost too bad to be true. See more »

  • Fact or Fiction: Eradicated Diseases

    Fact or Fiction: Eradicated Diseases

    It's a noble and difficult endeavor to eradicate diseases. Yet, a number of organizations and a host of people are dedicating their lives to just that and in turn, millions of lives are being saved. See if you know which diseases may one day be eradicated. See more »

  • Freak Show Quiz

    Freak Show Quiz

    They were peculiar, and sometimes horrifying, but what was really wrong with them? Test your knowledge of some famous circus "freaks" in this seven-question quiz. See more »

  • Frequently Asked Questions About Neurofibromatosis

    Frequently Asked Questions About Neurofibromatosis

    Neurofibromatosis is a genetic disorder that causes tumors to form on nerves throughout the body. Learn more about neurofibromatosis here. See more »

  • Frequently Asked Questions About Proteus Syndrome

    Frequently Asked Questions About Proteus Syndrome

    In 1998, a panel of doctors at the National Institutes of Health surmised that Joseph Merrick's affliction may have been caused by a condition known as Proteus syndrome. Find out what it is and what causes it. See more »

  • The Ultimate Diagnosis Quiz

    The Ultimate Diagnosis Quiz

    Play doctor in our ultimate diagnosis quiz! Test your medical knowledge, and see how much you know about rare medical disorders. See more »

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