Bombay blood Group


H antigen deficiency is known as the "Bombay phenotype" (h/h, also known as Oh) and is found in 1 of 10,000 individuals in India and 1 in a million people in Europe

The Bombay blood group is a rare blood group, phenotypes of this group lacking H antigen on the red cell membrane and have anti-H in the serum. It fails to express any A, B or H antigen on their red cells or other tissues. The existence of a human H/h genetic polymorphism was first established by Bhende et al.

Though not as precious as golden blood, the Bombay blood type is also considered one of the rarest. Found in less than 0.0004% of the world population, it was discovered in Mumbai in 1952. The presence of antigen H makes it different.

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