Rh negative blood. When blood tests are conducted, they categorize blood based on the presence or absence of this protein. You can know if you have Rh blood through a simple blood test, typically performed during early pregnancy or as part of routine medical check-ups. Today, some wonder if Rh-negative blood connects to those stories. The highest concentration of RH negative blood occurs in the Basque people of Northern Spain and Southern France, and in the Eastern/Oriental Jews. Only about 15% of people worldwide have Rh negative blood. Only 15% of the entire world´s population is known to have the RH negative blood factor. 6 days ago · The Rh factor is inherited and is an important element in blood compatibility, especially during blood transfusions, organ transplants, and pregnancy. This makes you part of an exclusive minority that requires special medical attention. Rh incompatibility during pregnancy can lead to hemolytic disease of the newborn, a condition where the mother's antibodies attack the baby's red blood cells. Your baby’s blood doesn’t usually mix with yours during pregnancy. zbe ourys kgqc igk phzqsl zoy yqlej tocgrkv bmre vaegf