4.33 % of the worlds population has O - blood. Conversely 36.44% of the worlds population has O + blood.
It is rare because only 15% of the world has O negative blood.
Approximately 7% of people in the world have O- blood type. That said, the most rare is AB-, which approximately 1% of people have. O- is the least rare negative blood type.
Rare blood types are O negative and AB negative. B negative and AB positive are also fairly rare blood types. O negative is known as the universal donor blood type because it is compatible with any other blood type.
all negative groups are only 5 to 8% so these are rare and "AB" negative is very rare.
In the ABO blood system, type O positive blood is common, about 36% of the population. 90% of the population is Kell negative. So no, it is not rare.
O positive is a very common blood type. It is the most common blood type today. There are not many people with O negative. O negative is very rare.
While type O negitive blood is pretty rare, the rarest blood type is actually AB negitive. It represents only about .6% of the populations blood types.
Anybody can possess the Rh O-Negative, alias the 'Royal Blood', as it is not restricted to royalties.The royal blood is a specific blood group. It is the Rh O-Negative. It is a very rare group. So rare that when it was discovered to be running in the veins of a royal family and their descendants, it was named the 'Royal Blood'. Anybody can possess the Rh O-Negative, alias the 'Royal Blood', as it is not restricted to royalties.The Rh O-Negative is a Universal Donor, i.e. someone possessing this blood group can donate his/her blood to anyone, irrespective of their blood groups. This is a sort of blessing, as you can save anybody. The big problem with it is that the Rh O-Negative recipient can only receive blood of Rh O-Neg type which is, as I said before, very rare.
6 % of population has O- 40% has O+ and the rest is distributed among A-/+, B+/-, AB+/-
AB negative is the rarest blood type. AB positive is the second rarest blood type. The negative blood types are more rare than the positive. The common blood type is o.
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 - blood type is the rarest blood type, followed by AB + being the second rarest. Its usually not good to have a rare blood type, considering that its rare and if you ever need a blood transfer, your blood type would be harder to find. If your considering donating your rare blood, it'll definitely be useful towards the other few people with the same blood type that need a transfer.