Blood types in Japan

In Japan they ask your blood type even if you wanna go to the toilet! Just joking, but seriusly talking they usually ask it when you register in websites, in job interviews, when you meet a new person he/she asks your blood type before your age, my workmates know everyone’s blood type in the office and it is usually a conversation theme… As you can see they are pretty obsessed with it.

They believe in some superstitions and pseudo scientific theories that associate blood types with personalities. Everything started from an article written by a professor in 1916, the title was “A study about temperament using blood types”. Even thought he wrote the article with very few scientific evidences it started to become pretty popular and started to be used by the nationalist government in order to select new soldiers depending on their blood type. The “theory” explains that people from group O are more aggressive and passionate, so they are better to be trained as soldiers.

During the 70’s and 80’s many books about blood types where written and it became a national phenomenon. These books explain how you should select a partner depending on your blood type compatibility, how to behave with your friends depending on their blood types, when you should marry depending on your blood type…. Is like a horoscope, in fact in many Japanese magazines there is a “blood type horoscope” section.

If you are interested here are some ideas described by the Japanese blood type “theories”:

  • Type A: perfectionist, shy, intellectual, patient, stubborn.
  • Type B: does things the easy way, individualist, thinking over feelings.
  • Type O: social, born to be a leader, arrogant, extroverted
  • Type AB: “cool”, balanced, is a mix of the previous types.

And here you have the compatibilities between types, will get along with a type B? Or is a type O better for you?:

  • A is compatible with other A and also AB.
  • B is compatabile with other B and AB.
  • AB is compatible with AB, B, A and O.
  • O is compatible with O and AB.

40% of Japanese are type B. I don’t even know my type yet, at Japanese are surprised when I tell them “I don’t know my blood type”, but the advantage is they will not judge me using a priori just using my blood type.

If you wanna know more about all this blood type/personalty stuff continue reading at this article from wikipedia.

11 Comments
  • Karisu

    May 15, 2007 at 6:28 am

    Yah, I have no idea what my blood type is. I heard awhile ago about this blood type thing and I can’t help but find it terribly odd. Then again, it is Japan. 🙂

  • nodle

    May 15, 2007 at 8:34 am

    Hmmm that is strange. I have heard of talk about this from anime episodes etc. I have always wondered about it. Thanks for clearing it up!

  • AS

    May 15, 2007 at 4:43 pm

    I heard about this through another website, its good to spread the word so that we may judge each other based on our blood types lol. My blood type is A according to the blood bank, don’t go judging me now just because I told you ^-^.

  • special K

    May 17, 2007 at 12:28 pm

    http://www.japanesepod101.com/2006/02/18/japanese-culture-class-7-whats-your-blood-type/
    listen to this podcast for more of the same. Interesting though. I’m a type A. . 真面目ですね。

  • Michael Delepine

    June 1, 2007 at 2:28 am

    My wife who is Japanese believes in this blood type stuff. I tried to explain to her this is a misunderstanding from many years ago regarding blood types, but she refuses to listen to the logic.

  • […] In order to be able to take pictures you had to buy the lastest DVD from Maya Koizumi (小泉麻耶). A 18 years old gravure model, her blood type is A and is not yet very famous but seems to have potential (88cm ). If you want to know more about her, or become his fan she has a blog. […]

  • […] Two weeks ago me and Danny promised Kasai Nana’s pictures, we are a little bit late but here you have the pics ^^. Today’s idol is Kasai Nana (華彩 なな), she is 23, 156cm, 90-59-88 a her blood type is A. The information about the blood type is the most important for Japanese, they can know everything about her just knowing she is A . […]

  • […] Sangre de mi sangre Filed under: Cultural Socks — Avellaneda @ 11:23 am Me acabo de enterar que los japoneses dan importancia a tu grupo sanguíneo, tanto que te lo pueden pedir en una entrevista de trabajo o para rellenar ciertos papeles!!!! Y es que los japoneses, siguiendo una teorías científicas que habría que mirar más de cerca, creen que el tipo de sangre vendría asociado con la personalidad. Esta es la clasificación básica según Kirainet: […]

  • […] Sangre de mi sangre Filed under: Uncategorized — Avellaneda @ 12:15 pm Me acabo de enterar de que los japoneses dan importancia a tu grupo sanguíneo, tanto que te lo pueden pedir en una entrevista de trabajo o para rellenar ciertos papeles!!!! Y es que los japoneses, siguiendo una teorías científicas que habría que mirar más de cerca, creen que el tipo de sangre vendría asociado con la personalidad. Algo así como para nosotros el horóscopo, sólo que en ocasiones se toman estas teorías muy en serio. Esta es la clasificación básica según Kirainet: […]

  • […] In order to be able to take pictures you had to buy the lastest DVD from Maya Koizumi (小泉麻耶). A 18 years old gravure model, her blood type is A and is not yet very famous but seems to have potential (88cm ). If you want to know more about her, or become his fan she has a blog. […]

  • Andrea

    January 2, 2011 at 11:53 am

    My blood type is O, and I am soo not “born to be a leader, arrogant, extroverted”, I am pretty much like A. So yeah, guess I’ll also say ‘I don’t know my blood type” so they won’t misjudge me ^^ I love your blog, by the way! ^^