![]() Interested in finding out what blood type you are?ĭon’t know your blood type? We’ll test your blood when you donate and let you know your type. While having O negative blood makes you a universal blood donor, it also means that if you need blood, you can only be transfused with O negative blood. Having consulted a few scientists, I was told that it was unlikely blood type O was the first blood type, but also that a few hundred thousand years ago rh negative blood might have originated in Africa, though the rh negative blood type factor is presented quite low on the African continent. Not only will you help save lives, but you’ll also ensure there’s a good supply of O negative available should you need blood. If you have O negative blood and are able to donate, we encourage you to do so. What does this mean for those with O negative blood? O negative blood may not be the rarest blood type, but may be critical to a victim’s survival in an emergency. While positive and negative characteristics are associated with each blood type, some blood types are perceived to be better or worse than others. When trauma victims need urgent treatment, there is seldom time to test their blood type, so O negative blood is used. Because blood types are genetic, they are inherited from the parents, blood types have different racial and ethnic differences. Most people are either A positive or O positive and the fewest are AB negative. In addition, emergency services, including ambulances and helicopters, may also carry it to keep patients alive while they’re being transported to a hospital. Blood types and ethnicity There are four main blood types: O, A, B, and AB and two Th factors, positive or negative. In addition, each blood type has an Rh factor, or Rhesus factor, which is a protein found in your red blood cells. Hospitals need to have it on hand for emergencies. There are four main known blood types: A, B, AB, and O. 34 of the population shares it A+ hospital patients can receive blood from both A and O blood types. O negative blood is valuable because it can be transfused to anyone, regardless of their blood type. A+ is the second most common blood type in America. blood types, including how common they are across the Australian population. If O negative isn’t that rare, why do blood centers and hospitals always need it? The most common blood type in Australia is O positive and the least common. ![]() Type A: The red blood cells have the type A agglutinogen. Fewer than 50 people in the entire world population are known to have Rh-null blood. There are four basic blood types, made up from combinations of the type A and type B antigens. However, the rarest blood type in the world is Rh-null, which is so rare most of us have never heard of it. Is that rare? Only about 1 in 67 have B negative blood, making it rarer. Or to put it another way, about 1 in 15 people have O negative blood. If you have 0 negative blood, you have something in common with about 7 percent of the US population. (This table has more entries than the table above but does not distinguish between Rh types.People with O negative blood often wonder how rare their blood is since it is always in demand by hospitals and blood centers. Type B-negative blood can be transfused to all B and AB blood. ( April 2012) ( Learn how and when to remove this template message)ĪBO and Rh blood type distribution by country & dependency (population averages)ĥ0.0% and above 40.0–49.9% 30.0–39.9% 20.0–29.9% 10.0–19.9% 5.0–9.9% Ethnic distribution of ABO (without Rh) blood types How Blood Types Are Determined Approximately 1 out of every 50 people has B-negative blood. Please help to ensure that disputed statements are reliably sourced. Ethnicity-adjusted expected ABO percentages for the state of Colorado were calculated using two different sources of information: (1) Colorado Department of Public Health and Environment (CDPHE) population ethnicity data Table 2 12 and (2) well-established published ABO frequencies by ethnicity. Relevant discussion may be found on Talk:Blood type distribution by country. Each group can be either RhD positive or RhD negative, which means in total there are 8 blood groups. Your blood group is determined by the genes you inherit from your parents. ![]() This section's factual accuracy is disputed. Home Health A to Z Blood groups There are 4 main blood groups (types of blood) A, B, AB and O.
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