黄帝曰。愿闻其奇邪而不在经者。岐伯曰。血络是也。黄帝曰。刺血络而仆者。何也。血出而射者。何也。血少黑
而浊者。何也。血出清而半为汁者。何也。发针而肿者。何也。血出若多若少而面色苍苍者。何也。发针而面色不变而
烦者。何也。多出血而不动摇者。何也。愿闻其故。岐伯曰。脉气盛而血虚者。刺之则脱气。脱气则仆。血气俱盛。
而阴气多者。其血滑。刺之则射。阳气蓄积。久留而不泻者。其血黑以浊。故不能射。新饮而液渗于络。而未合和于血
也。故血出而汁别焉。其不新饮者。身中有水。久则为肿。阴气积于阳。其气因于络。故刺之血未出而气先行。故肿。
阴阳之气。其新相得。而未和合。因而泻之。则阴阳俱脱。表里相离。故脱色而苍苍然。刺之血出多色不变而烦 者。
刺络而虚经虚经之属于阴者。阴脱故烦 。阴阳相得。而合为痹者。此为内溢于经。外注于络。（言阴阳不虚实相倾而病
痹痛者此其血多而内外俱壅也）如是者。阴阳俱有余。虽多出血。而弗能虚也。黄帝曰。相之奈何。岐伯曰。血脉者盛。
坚横以赤。上下无常处。小者如针。大者如筋。则而泻之。万全也。故无失数矣。失数而反。（反即胀论所谓必更其道也）
各如其度。黄帝曰。针入而肉着者。何也。岐伯曰。热气因于针。则针热。热则肉着于针。故坚焉。
布局与五癃津液别同。而词旨修洁过之。末段叙不动摇。独用另笔。可悟行文断续之妙。
Huangdi said: I wish to hear about the strange pathogens that are not located in the meridians. Qibo said: These are the blood collaterals (superficial veins). Huangdi said: Why does one faint after puncturing the blood collaterals? Why does the blood spray out? Why is the blood scanty, dark, and turbid? Why is the blood clear with half of it being fluid? Why does swelling occur after withdrawing the needle? Why does the complexion turn pale and bluish despite varying amounts of bleeding? Why does one feel vexed without a change in complexion after withdrawing the needle? Why does one remain steady without trembling despite significant blood loss? I wish to hear the reasons for these phenomena.
Qibo said: In cases where meridian qi is abundant but blood is deficient, puncturing will deplete the qi. Depletion of qi leads to fainting. When both blood and qi are abundant, and yin qi is predominant, the blood is slippery; thus, puncturing causes it to spray. When yang qi accumulates and remains stagnant for a long time without being released, the blood becomes black and turbid, hence it cannot spray. If water has just been drunk, the fluids seep into the collaterals before harmonizing with the blood; therefore, the blood comes out while the fluid separates. If water was not recently drunk, but there is water retention in the body, prolonged stagnation leads to swelling. When yin qi accumulates in the yang aspect and obstructs the collaterals, upon puncturing, the qi moves forward before the blood emerges, causing swelling. When yin and yang qi have newly combined but are not yet harmonized, applying draining methods will cause both yin and yang to collapse, separating the interior from the exterior; thus, the complexion loses its luster and appears bluish. In cases where significant blood is lost, the complexion remains unchanged, yet vexation occurs, it is because puncturing the collaterals empties the meridians. Emptiness in the meridians belonging to yin leads to depletion of yin, causing vexation. When yin and yang qi combine to form Bi syndrome (obstruction syndrome), this indicates that blood overflows internally into the meridians and externally into the collaterals. (This means that when yin and yang are neither deficient nor excess but clash against each other, causing Bi pain, there is excessive blood and obstruction both internally and externally). In such cases, both yin and yang are in excess; even with significant blood loss, they cannot be rendered deficient.
Huangdi said: How can one identify them? Qibo said: When the blood vessels are full, hard, transverse, red, and vary in location from upper to lower, small as needle points or large as sinews, one should apply draining methods accordingly to ensure complete safety. Therefore, do not deviate from these principles. Deviating will lead to opposite results (as mentioned in the Chapter on Distension, one must change the approach), each conforming to their pathological extent.
Huangdi said: Why does the flesh adhere to the needle after insertion? Qibo said: Heat attaches to the needle, making the needle hot. Heat causes the flesh to adhere to the needle, resulting in a sensation of tightness.
The structure of this passage is similar to that of the "Treatise on Five Obstructions and Differentiation of Body Fluids," but its language and intent are more refined. The final section describes the phenomenon of "no trembling" using a separate narrative style, illustrating the subtlety of the text's interrupted flow.