In addition to the A and B antigens, there is a protein called the Rh factor, which can be either present (+) or absent (–), creating the 8 most common blood types (A+, A-, B+, B-, O+, O-, AB+, AB-). There are very specific ways in which blood types must be matched for a safe transfusion.

2024年1月11日 · The eight main blood types are A+, A-, B+, B-, O+, O-, AB+, and AB-. The most common blood type in the United States is O-positive, with around 38 percent of the population having this type...

2022年8月30日 · According to the American Red Cross, the most common blood type is O positive, which is the blood type for 37% of the population. This blood type is in high demand since it is "the most...

2019年9月4日 · In general, blood type O-positive is the most common blood type in the world, while AB-negative is considered the rarest, but does this trend apply to the blood type …

2023年9月15日 · There are eight blood types, divided into four categories: A, B, AB, and O, and whether Rh positive or negative. These types are determined by antigens on red blood cells. Learn what this means.

2024年1月31日 · According to the American Red Cross, the following statistics show the most common blood types in the U.S. based on the donor population: The least common blood type in the U.S. is...

2021年10月14日 · O-negative blood type is most common in the U.S. among Caucasian adults, at around eight percent of the Caucasian population, while only around one percent of the Asian …

2020年7月24日 · What's the most common blood type in the United States and World? In the United States, 37% of the population has type O+ blood, making it the most common type. It's followed closely by A+, with 34%. The blood group O is the most common in the world with 47% of the population having this blood type. Find out much more on our Blood Types page!

From this table, it’s evident that O positive stands out as the most prevalent blood type across both global and U.S. populations. Understanding one’s blood type is crucial for several reasons. First and foremost, it can be life-saving during medical emergencies requiring transfusions.

2021年9月15日 · Coupled with humans’ collective knowledge of antigens, this has allowed scientists to classify blood groups as one of eight types for over a century: The most common of these eight is O-positive, found in roughly 40% of the U.S. blood donor population.