Chinese idiom · 成语
一针见血
Meaning
One needle draws blood; piercingly accurate.
Character by character
Origin and story
Legendary antecedent and literary usageA needle that draws blood immediately supplies the expression's sharp image. The Ministry of Education dictionary connects it with a portent in Jin Shu (晉書), volume 66: a prediction of Tao Kan's future rank leads him to pierce a finger, and the blood is said to form the character 公, a title of high rank. This is a miraculous element of the biography, not an established medical or historical fact.
The passage does not contain the exact idiom, so the proposed connection should not be mistaken for a demonstrated chain of coinage. The figurative wording is attested in Liang Qichao's study of Rousseau, where it praises a concise, penetrating argument. Today it means getting directly to the heart of a matter.
Sources and further reading
In everyday life
她一句话就一针见血地指出了问题：我们根本没问用户需要什么。
She put her finger on the problem in one sentence: we had never asked what users needed.
Praises a remark that identifies the central issue directly and precisely.