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 K
  • woman with a keloid or raised scar on her shoulder

    Keloids (Raised Scars)

    Keloids are a type of raised scar. They occur where the skin has healed after an injury and can grow…

  • a woman with keratosis pilaris scratches the back of her arm

    Keratosis Pilaris

    Keratosis pilaris is a harmless skin condition that causes small bumps to appear on the skin. They can appear anywhere…

  • An illustration of a healthy kidney and a kidney with cysts

    Kidney Cysts

    Kidney cysts are sacs filled with fluid that form in the kidneys. These small, oval or round sacs are almost…

  • Close-up of a young businessman holding side with kidney pain

    Kidney Infection Symptoms and Treatment

    A kidney infection results when bacteria get into one or both of your kidneys.

  • A woman holding her lower back on one side, indicating kidney pain

    Kidney Stones

    Your body removes waste through urine that’s made in your kidneys. When waste doesn’t properly leave your kidneys, it can…