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  • Does Knuckle Cracking Cause Harm? for Parents


    Find out what the experts have to say.

  • General Health Q&A for Parents


    From tonsils to tanning salons, here are answers to common questions parents have about keeping kids healthy.

  • Acanthosis Nigricans for Parents


    Acanthosis nigricans (AN) is a condition that causes the skin to thicken and darken in places. AN is not harmful or contagious, but can be a sign of certain other medical conditions.

  • Acanthosis Nigricans for Teens


    Acanthosis nigricans, or AN, is a darkening and thickening of the skin that can be a sign of certain other medical conditions. Find out more.

  • Joint Aspiration (Arthrocentesis) for Parents


    A joint aspiration (arthrocentesis) involves withdrawing (aspirating) a sample of fluid from a joint using a needle and syringe.

  • Q&A for Parents


    Our medical experts answer some common - and not so common - questions from readers about parenting, diseases and conditions, the human body, and raising happy and healthy kids.

  • Arthritis for Kids


    Kids can get a kind of arthritis that causes joint pain. Find out more in this article for kids.

  • Juvenile Idiopathic Arthritis (JIA) for Teens


    Learn about juvenile idiopathic arthritis, a specific kind of arthritis that usually occurs in kids and teens younger than 17.

  • Juvenile Idiopathic Arthritis for Parents


    In juvenile idiopathic arthritis (also called juvenile rheumatoid arthritis)), a person can develop swollen, warm, and painful joints. Learn more.