19+ Bombay 0 Blood Type Background. The bombay blood type, h/h or oh is present in less than 0.0004% of the world's population. Normally, if an a blood type mother has an o type child, the father is expected to be type o or at least to carry the o allele (oo, ao, or bo genotype).

People who carry this rare blood type, about 1 in 10,000 in india, can accept blood only from another bombay blood type individual, and not from anyone who is o, a, b or ab type.

A blood type (also known as a blood group) is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (rbcs). Bombaybloodgroup.org is an initiative which has built a network of blood banks, donors, logistics and volunteers to ensure timely blood availability for people in need of extremely rare blood groups. Everyone who is related to bombay blood group. Let me first explain, what this blood grouping system based upon.