Rh Sensitization During Pregnancy (cont.)
IN THIS ARTICLE
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:2
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.
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