Limits RegistryPUBLIC RECORD
Limits RegistryRh-null blood, which lacks all antigens of the Rh system, has been reported in only about 43 people worldwide since it was first identified in an Aboriginal Australian woman in 1961, and only around nine active donors are known. Because it is compatible with all rare Rh types it is nicknamed 'golden blood', but people with it can receive only Rh-null blood.
The question, scope, and sources behind this Registry record.
Rh-null blood, which lacks all antigens of the Rh system, has been reported in only about 43 people worldwide since it was first identified in an Aboriginal Australian woman in 1961, and only around nine active donors are known. Because it is compatible with all rare Rh types it is nicknamed 'golden blood', but people with it can receive only Rh-null blood.
The smallest number of individuals ever documented with a given human blood phenotype, among clinically recognised blood types.
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The frontier as it changed over time.
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1 accepted Claim, with 1 linked evidence records.
Permanent ID limitsregistry.com/limits/LR-RAREST-BLOOD-TYPE-RH-NULL
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Limits Registry. LR-RAREST-BLOOD-TYPE-RH-NULL. Rarest human blood type (Rh-null). 2026.