---
type: Index
title: "The Four Blood Types (四種血型性格)"
description: "Personality profiles of the four ABO blood types — a popular cultural belief."
resource: https://localpapa.com/tools/horoscope.html
tags: [blood-type, personality]
timestamp: 2026-06-21T00:00:00Z
---

# The Four Blood Types · 四種血型性格

A popular East-Asian belief links the four **ABO blood types** to personality. Combined with a **sun sign** or **Chinese zodiac**, it gives a richer (if unscientific) character sketch.

| Type | Keywords |
| --- | --- |
| [A 型 (Type A)](./a.md) | careful, meticulous, responsible |
| [B 型 (Type B)](./b.md) | free-spirited, optimistic, creative |
| [O 型 (Type O)](./o.md) | action-driven, pragmatic, goal-oriented |
| [AB 型 (Type AB)](./ab.md) | rational, multifaceted, enigmatic |

> ※ Blood-type personality theory is a popular cultural belief with no scientific basis — for entertainment only.

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*[Blood-type knowledge base](../index.md)*