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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 S
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  • closeup of a sty on a child’s eye

    Sty

    A sty is a painful, red bump that forms on the edge of your eyelid. It may look like an…

  • Substance Use Disorder

    Substance use disorder can happen when products aren’t used in the right way. Prescription medicines, illegal drugs, tobacco, and alcohol…

  • Sudden Infant Death Syndrome (SIDS)

    Sudden infant death syndrome is the unexplained reason a baby under 1 year old dies while sleeping. There are no…

  • A couple holds hands while talking to a doctor holding a clipboard. Syphilis is a serious infection spread through sexual contact. It's important to seek treatment early if you notice syphilis symptoms.

    Syphilis

    Syphilis is a serious infection passed from one person to another through sexual contact. It is caused by a bacteria…

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