取之泻其邪而出其血，留之发为痹也。凡诊络脉，脉色青则寒且痛，赤则有热。胃中寒，手鱼之络多青矣；
胃中有热，鱼际络赤，其暴黑者，留久痹也；其有赤有黑有青者，寒热气也，其青
短者，少气也。凡刺寒热者皆多血络，必间日而一取之，血尽
而止，乃调其虚实；其小而短者少气，甚者泻之则闷，闷甚则仆不得言，闷则急坐之也。
手太阴之别，名曰列缺，起于腕上分间，并太阴之经直入掌中，散入于鱼际。其病实则手锐掌热，虚则欠
KT，小便遗数，取之去腕半寸，别走阳明也。手少阴之别，名曰通里，去腕一寸半，
别而上行，循经入于心中，系舌本，属目系。其实则支膈，虚则不能言，取之掌后一寸，别走太阳也。手
心主之别，名曰内关，去腕二寸，出于两筋之间，循经以上系于心，包络心系。实则心
痛，虚则为头强，取之两筋间也。手太阳之别，名曰支正，上腕五寸，内注少阴；其别者，上走肘，络肩 。
实则节弛肘废，虚则生 ，小者如指痂疥，取之所别也。手阳明之别，名曰偏历，
通过针刺泻法祛除邪气并排出瘀血，若留针时间过长则可能演变为痹证。凡是诊察络脉时，络脉颜色青紫表示体内有寒且伴有疼痛；颜色红赤表示体内有热。胃中有寒邪，手掌大鱼际部位的络脉多呈青色；胃中有热邪，鱼际处的络脉呈红色；如果颜色突然变黑，说明是久留不去的痹证；如果络脉颜色既有红又有黑还有青，说明是寒热错杂之证；如果络脉形态短小，说明是元气不足（少气）。凡是治疗寒热病证的，通常涉及较多的血络，必须每隔一天针刺一次，直到瘀血排尽为止，然后调理虚实；如果络脉细小且短小的患者属于元气不足，此时若用泻法则会出现胸闷，胸闷严重时会昏倒不能言语，出现胸闷时应立即让患者坐下休息。
手太阴肺经的别络，名叫列缺，起始于手腕上方分肉之间，与手太阴肺经并行直入掌中，散布于大鱼际处。其病症表现为：实证时手腕锐骨处及掌心发热；虚证时出现呵欠、小便失禁或频数，治疗应取去腕横纹半寸处的列缺穴，此络脉由此别走入手阳明大肠经。
手少阴心经的别络，名叫通里，位于腕后一寸半处，向上行走，沿经脉进入心中，联系舌根，归属于目系。其病症表现为：实证时胸膺部支撑胀满；虚证时不能言语，治疗应取腕后一寸处的通里穴，此络脉由此别走入手太阳小肠经。
手厥阴心包经的别络，名叫内关，位于腕后二寸处，出于两筋之间，沿经脉上行联系于心，包裹心系。其病症表现为：实证时心痛；虚证时头项强直，治疗应取两筋之间的内关穴。
手太阳小肠经的别络，名叫支正，位于腕后五寸处，向内注入手少阴心经；其分支向上走向肘部，联络肩部。其病症表现为：实证时关节松弛、肘部功能丧失；虚时皮肤生疮疡，小的如手指上的痂疥，治疗应取该络脉别出的部位。
手阳明大肠经的别络，名叫偏历，
By employing the reducing method to dispel pathogenic factors and expel blood stasis, if the needle is retained for too long, it may develop into Bi syndrome (obstruction syndrome). In general, when inspecting the collateral vessels, a bluish color indicates cold and pain, while a reddish color indicates heat. If there is cold in the Stomach, the collaterals on the thenar eminence (Hand Fish) will appear predominantly blue; if there is heat in the Stomach, the collaterals at the thenar eminence will be red; if the color suddenly turns black, it indicates chronic Bi syndrome; if the colors are mixed with red, black, and blue, it indicates a condition of alternating cold and heat; if the collaterals appear short, it indicates deficiency of Qi (Shao Qi). When treating conditions of cold and heat, which typically involve numerous blood collaterals, puncture should be performed every other day until the stasis is exhausted, after which the deficiency and excess should be regulated. In cases where the collaterals are small and short, indicating deficiency of Qi, applying the reducing method may cause chest oppression; severe oppression may lead to collapse and inability to speak, in which case the patient should be seated immediately.
The Luo-connecting vessel of the Hand-Taiyin Lung Meridian is named Lieque (LU-7), originating from the intermuscular space above the wrist, running parallel to the Hand-Taiyin channel directly into the palm, and dispersing into the thenar eminence. Its pathological manifestations include: in excess patterns, heat in the radial side of the wrist and palm; in deficiency patterns, yawning, urinary incontinence, or frequent urination. Treatment involves selecting Lieque, located half a cun distal to the wrist crease, as this vessel diverges to connect with the Hand-Yangming Large Intestine Meridian.
The Luo-connecting vessel of the Hand-Shaoyin Heart Meridian is named Tongli (HT-5), located one and a half cun proximal to the wrist crease, ascending along the channel into the heart, connecting with the root of the tongue, and attaching to the eye system. Its pathological manifestations include: in excess patterns, fullness and distension in the precordium; in deficiency patterns, aphonia. Treatment involves selecting Tongli, located one cun proximal to the posterior wrist crease, as this vessel diverges to connect with the Hand-Taiyang Small Intestine Meridian.
The Luo-connecting vessel of the Hand-Jueyin Pericardium Meridian is named Neiguan (PC-6), located two cun proximal to the wrist crease, emerging between the two tendons, ascending along the channel to connect with the heart and pericardium. Its pathological manifestations include: in excess patterns, heart pain; in deficiency patterns, stiffness of the head and neck. Treatment involves selecting Neiguan, located between the two tendons.
The Luo-connecting vessel of the Hand-Taiyang Small Intestine Meridian is named Zhizheng (SI-7), located five cun proximal to the wrist crease, flowing inward to connect with the Hand-Shaoyin Heart Meridian; its branch ascends to the elbow and connects with the shoulder. Its pathological manifestations include: in excess patterns, flaccidity of the joints and loss of function in the elbow; in deficiency patterns, skin sores, small ones resembling scabs or scabies on the fingers. Treatment involves selecting the point where this vessel diverges.
The Luo-connecting vessel of the Hand-Yangming Large Intestine Meridian is named Pianli (LI-6),