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  1. Medical Diseases & Conditions - Mayo Clinic

    Explore comprehensive guides on hundreds of common and rare diseases and conditions from the experts at Mayo Clinic.

  2. Symptom Checker with Body from WebMD - Check Your Medical

    WebMD Symptom Checker is designed with a body map to help you understand what your medical symptoms could mean, and provide you with the trusted information you need to help make informed …

  3. A to Z list of common illnesses and conditions | NHS inform

    A to Z list of common illnesses and conditions - including their symptoms, causes and treatments

  4. Health Topics - MedlinePlus

    Health Topics Read about symptoms, causes, treatment and prevention for over 1000 diseases, illnesses, health conditions and wellness issues. MedlinePlus health topics are regularly reviewed, …

  5. Most Common Health Problems | U.S. News

    Aug 10, 2023 · Learn about ten of the most common health conditions doctors diagnose.

  6. Health A to Z - Harvard Health Publishing - Harvard Health

    Health A to Z The A to Z library is a collection of articles covering many of the most commonly searched medical conditions. Each article contains a description of the condition; the symptoms; how it is …

  7. Top Common Health Issues: Symptoms, Causes & Prevention Tips

    Jul 9, 2025 · Explore the most common health problems globally—from heart disease to mental health—and learn how to prevent or manage them effectively.

  8. Symptoms of Serious Diseases and Health Problems

    Learn the signs and symptoms of 12 serious health conditions like heart attack, stroke, STDs, breast cancer, lung disease, digestive diseases, bladder problems, skin cancer, and more.

  9. Health Topics | CDC

    Find diseases and conditions; healthy living; workplace safety; environmental health; injury, violence and safety, global health and more.

  10. Symptom Checker - Mayo Clinic

    Find possible causes of symptoms in children and adults. See our Symptom Checker.