In a routine blood test that turned extraordinary, French scientists have identified the world's newest and rarest blood ...

Talk about a lonely hearts club. An unnamed woman from Guadeloupe has the rarest blood type on earth, to the extent that ...

Rh Factor Incompatibility Most of the time, being Rh-negative has no risks. But during pregnancy, being Rh-negative can be a problem if your baby is Rh-positive. If your blood and your baby's ...

Learn how your genetics determines your blood type, including what genes are involved and what the inheritance patterns look like.

People with type O blood enjoy a slightly lower risk of heart disease and blood clotting, but they may be more susceptible to hemorrhaging or bleeding disorders. This may be especially true after ...

The Rh type is important in Pregnancy because, Rh incompatibility that happens when the mother's blood group is Rh negative and her baby’s blood group in the womb is Rh positive.

One out of every eight marriages in the U.S. is a potentially dangerous mismatch, biochemically speaking. In these 200,000 or more marriages a year, the wife lacks the Rh factor present in most ...

This study was undertaken to determine whether Rh-positive mothers induce immunologic tolerance or primary sensitization in their Rh-negative daughters as the result of transplacental passage of ...

Human populations that left Africa evolved quickly whereas Neanderthals stayed the same, according to an analysis of blood group systems.

After 50 years since its first detection, researchers have discovered the genetic background of the AnWj blood group antigen. Although rare, AnWj-negative phenotypes can have transfusion reactions ...

More information: Louise A Tilley et al, Deletions in the MAL gene result in loss of Mal protein, defining the rare inherited AnWj-negative blood group phenotype, Blood (2024).