O blood group
The rarest type of blood is O. people with O type blood can donate blood to anybody and there are very few people that have this blood type. It is extremely rare.
No it isn't. The rarest is AB negative.
AB Negetive
O positive is the most common blood type. O negative is the rarest donor because it is the rarest type of blood and is often referred to as the "universal donor."
O positive is the most common and AB negative is the rarest.
AB+ is the third rarest blood type. 1 person in 29 has AB+ which is 3.4% percent of the population.
If you mean rarest, then AB-. == == == == == ==
AB , the rarest bloodtype.
O neg is the second rarest blood group (AB neg is the rarest). It is more valuable than rare, as it is a universal donor.
AB Negative is the rarest blood type with less than one percent of the population having that type. However, the person with this type of blood can also receive several other types.
Every country has a different blood grouping system.The rarest blood type in the world is by far considered AB negative. This has supposibly been caused due to it not expressing the H antigen on the red blood cells.
AB negative.