Should pregnant women check their blood type?

　　Should pregnant women check their blood type? Why should you check your blood type during pregnancy? ? From a medical perspective, it is very necessary to check blood type during pregnancy.

　　1. Prepare for blood transfusion: in some pathological conditions, such as miscarriage in early pregnancy, Ectopic pregnancy wait； mid to late pregnancy placenta previa、placental abruption wait； Heavy vaginal bleeding during childbirth, etc., may cause maternal blood loss to be life-threatening. In particular, RH-negative blood sources are in short supply, and blood type identification in advance will help prepare blood sources.

　　2. Facilitate timely detection of neonatal hemolytic disease: This is a type of hemolytic disease caused by blood type antigen immunity caused by incompatibility between mother and baby's blood types. disease . In my country, the most common cause is ABO blood group incompatibility between mother and baby, followed by RH blood group incompatibility between mother and baby. More than 90% of newborns with ABO hemolytic disease occur in mothers with type 0 blood and fathers with type A or B blood. This may be related to the higher titer of immune antibodies produced by the mother after being stimulated by type A or type B antigenic substances. This immune antibody can enter through the placenta fetus in the body, causing hemolysis in newborns. Neonatal hemolytic disease caused by RH blood type, the mother is RH (-) and the father is RH (+). Therefore, early blood type examination can monitor the mother and baby during pregnancy for pregnant women with type 0 or RH negative, and take corresponding measures to prevent the occurrence of neonatal hemolytic disease. 》》》 What should pregnant women eat that can cause miscarriage?

　　3. Provide a reference basis for paternity testing: Of course, blood type testing can only be used as an auxiliary basis for parentage testing, and the most accurate one relies on DNA testing.