Human blood group systems are systems by which we can categorize red blood cells based on the markers on their surface. The Waldner (Wd) blood group system is defined by the unique Wd marker. Having the Wd blood group system is a result of having different variations of the SLC4A1 gene, which codes for a protein related to red blood cells. Genes are made up of DNA that code for proteins responsible for normal bodily function. However, having the Wd marker on red blood cells does not mean that someone has a disease, it just means that their red blood cells have specific markers that may not be present on others' red blood cells.
Blood group and the presence of the Wd marker can be determined through blood tests to identify the red blood cell markers present. If you or a family member is of the Waldner blood group, speak with your doctor to learn more information.
Description Last Updated: Aug 24, 2018