Diseases and Conditions

Find doctor-approved information about symptoms, causes, diagnosis, treatment and prevention of common diseases and conditions.

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All conditions that start with the letter W
  • Warts

    Warts are small growths on the skin that normally don't cause pain. Learn about different types of warts, treatment options,…

  • West Nile Virus

    West Nile virus is an infectious disease that can cause flu-like symptoms. It is spread by mosquitos.

  • Whooping Cough

    Whooping cough (pertussis) is a contagious infection. It is caused by bacteria and spread by people through the air or…

  • Wolff-Parkinson-White Syndrome

    Wolff-Parkinson-White syndrome is a rare heart condition that can cause fast heartbeat. Learn about the symptoms, causes, diagnosis and treatment…