In 1930, the Japanese began to embrace the idea of matching personality traits with one’s blood type, and although there is no proven relation yet between blood type and personality, many matchmaking services cater to it. This is because of Takeji Furukawa’s paper, “The Study of Temperament through Blood Type” who published his paper in the scholarly journal Psychological Research.

It’s widely popular in Japanese women’s magazines as a way of scaling compatibility with a partner. It is used extensively in dating services as a good indicator of potential matches. Blood type appears in many celebrity profiles and even manga character profiles, along with zodiac signs, star signs and hobbies. Morning television shows and Japanese newspapers feature “blood type horoscopes”.  Both anime and manga authors often mention their characters’ blood types, and give them a corresponding personality. There’s even a rumor of a baseball coach who used blood type compatibility in the selection of his teams.

So here are some traits of each blood type:



Type A people are known for being creative, sensible, reserved and patient, and they can also be fastidious, stubborn and overly conservative.

Examples: Hello Kitty, Utada Hikaru, GACKT, Angela Aki



Type B people are known for energetic, creative, passionate and strong-willed, while they can also be selfish and irresponsible.

Examples: Akira Kurosawa, Leonardio di Caprio, Paul McCartney, Duo Maxwell



Type AB people are known for being cool, controlled, rational, and they can also be indecisive, forgetful and irresponsible.

Examples: Barack Obama, Miyavi, Jackie Chan, Squall Lionheart of Final Fantasy VII,