Blood Type.
O

Blood type O

The Leader

Warm, confident, and the first to say "let's go".

Type O is pictured as the natural captain: sociable, decisive and generous with friends. They like to set a goal and move towards it, and they bring people along with them. The flip side is a competitive streak and a dislike of being told what to do.

✦ Strengths

  • Makes decisions quickly and owns the result
  • Warm and easy to approach, often the centre of a friend group
  • Bounces back from setbacks without dwelling on them

△ Watch out for

  • Can push their own plan without asking others
  • Hates losing, even at board games
  • Big-picture focus means small details slip

Type O in love

Type O is said to be protective and expressive in love. They like to take the lead, plan the dates and look after their partner. They value loyalty highly and can be hurt by indifference more than by an argument.

Type O at work

Type O is the stereotype of the team lead. They are good at rallying people around a target and at making the call when a group is stuck. They do best with autonomy and visible goals.

Type O in Korea and Japan

In Japan, type O is the second most common group and is often linked with athletes and leaders. In Korea, type O people are joked about as "the ones who take care of everyone" and are commonly cast as the dependable older sibling in dramas.

28%of people in Korea
30%of people in Japan
~44%worldwide

Approximate shares of the ABO group, rounded. Sources and more countries.

Type O compatibility

Not sure you're really a type O?

Take the 20-question test and see which type your answers match.

Take the test

These descriptions follow the popular stereotypes in Korea and Japan. Research has found no link between blood type and personality, so take it as entertainment.