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    Rh Sensitization During Pregnancy - What Increases Your Risk

    Rh sensitization can occur when a person with Rh-negative blood is exposed to Rh-positive blood. During pregnancy, an Rh-negative woman can become sensitized if she is carrying an Rh-positive fetus.

    Things that increase the risk of blood mixing and sensitization during pregnancy include:

    Although rare, Rh sensitization has been known to occur after needle sharing between intravenous drug users. Transfusing Rh-positive blood in an Rh-negative person can also trigger sensitization. But this is extremely rare, because blood is always tested prior to transfusion.

    WebMD Medical Reference from Healthwise

    Last Updated: June 04, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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