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 T
  • Tuberculosis

    Tuberculosis is an infection caused by bacteria. Tuberculosis usually affects the lungs. But it can also affect your joints, kidneys,…

  • Tuberous Sclerosis

    Tuberous sclerosis is a rare disease that causes tumors, or growths, in the brain and other organs. They are usually…

  • A woman with diabetes pricks her finger to test her insulin level. Diabetes is a disease that occurs when your body doesn’t make or use the hormone insulin properly. It causes too much blood glucose (sugar) in the blood.

    Type 1 Diabetes

    Diabetes is a disease that occurs when your body doesn’t make or use the hormone insulin properly.