Your blood group is generally ascertained before you start any form of fertility treatment. It may be important to know your blood group if you have a miscarriage. If you become pregnant and have the Rh-negative blood group type you will be given an injection of gamma globulin during pregnancy, after any bleeding and after delivery to help prevent you developing Rh antibodies. Once you have developed Rh antibodies these antibodies may cause a problem in any future pregnancy and will be present in your blood for ever. It is therefore most important that women of the Rh negative blood type are aware of the implications of Rh negative status. Ask your doctor or nurse for further information.
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