二芤者。阳也。指下寻之。两头即有。中间全无曰芤。主淋沥气入小肠。
二芤者。阳火也。何为阳火。小肠火也。离为火。其象中虚。故指法曰。指下
寻之。两头即有。中间全无。离之象也。盖以丁火。阴火也。主手少阴。丙火。
阳火也。主手太阳。手太阳。小肠也。故主病为淋沥气入小肠。其说详见
前脉赋。浮芤其状相反条内参看。洁古曰。弦浮无力。按之中央空。两边
有。曰芤。芤主失血。手足太阳。皆血多气少。故主病淋沥。气入小肠脱血
病者。皆从太阳之说。
按脉经云。芤脉浮大而软。按之中央空。两边实。一曰手中无。两傍有。
指下寻之中且虚。邪风透入小肠居。病时淋沥兼疼痛。大作汤丸必自除。
指下寻之中且虚。火之象也。火性本热。热则生风。故曰邪风透入小肠。
而为淋沥疼痛之病也。治之者。当大作汤丸。以泻其小肠之火。则淋沥
自止。而疼痛可除矣。云岐子云。芤主血凝而不流。凡人之十二经络。以
应沟渠。是荣卫气血不散。不能盈满经络。故见芤脉。主淋沥小便脓及
血。当大作汤丸也。四物汤地黄丸补之。桃仁承气汤泻之。一云大柴胡
汤。吴文炳云。中且虚。两头有。中间无也。芤主失血。心主血。心有热而血
妄行。则芤脉见。热则生风邪。心不受邪。遂传于小肠。以致小便淋沥疼
痛。须用八正散导赤散。以清邪热。
两个芤脉，属于阳脉。手指下寻按，两头即有脉动，中间完全空虚，这就是芤脉（Kou pulse）。它主治淋沥（小便淋漓不尽）和气入小肠的病证。
两个芤脉，是阳火之象。什么是阳火？就是小肠之火。离卦象征火，其形象中间空虚，所以指法说：手指下寻按，两头即有，中间完全空虚，这正是离卦的形象。大概丁火是阴火，主管手少阴心经；丙火是阳火，主管手太阳小肠经。手太阳经对应的是小肠，所以主治病证为淋沥和气入小肠。这种说法详见于前文的《脉赋》。浮芤脉的形态相反，请参考“浮芤其状相反”这一条的内容。洁古（张元素）说：弦而浮且无力，按下去中央空，两边有，这叫芤脉。芤脉主失血。手足太阳经都是血多气少，所以主治病证为淋沥、气入小肠。脱血病患者，都遵循太阳经的理论。
按《脉经》记载：芤脉浮大而且柔软，按下去中央空，两边实。另一种说法是：中间无脉，两旁有脉。
手指下寻按，中间且虚，邪风透入并居于小肠。发病时伴有淋沥和疼痛，大作汤剂或丸药治疗，病必自除。
手指下寻按，中间且虚，这是火的形象。火性本热，热则生风，所以说邪风透入小肠，从而产生淋沥疼痛的病证。治疗的人，应当大作汤剂或丸药，以泻去小肠的火邪，那么淋沥自然停止，疼痛也可以消除。云岐子说：芤脉主血凝滞而不流动。凡是人的十二经络，对应着沟渠，如果营卫气血不散乱，不能充盈满溢经络，就会出现芤脉。它主治淋沥、小便脓血，应当大作汤剂或丸药治疗。用四物汤（Four Substance Decoction）和地黄丸（Rehmannia Pill）来补益，用桃仁承气汤（Tao Ren Cheng Qi Tang）来泻下。还有一种说法是用大柴胡汤（Da Chai Hu Tang）。吴文炳说：中间且虚，两头有，中间无。芤脉主失血。心主血，心有热而血液妄行，则出现芤脉。热则生风邪，心不受邪，于是传于小肠，导致小便淋沥疼痛。必须使用八正散（Ba Zheng San）和导赤散（Dao Chi San）来清除邪热。
Two Kou pulses belong to Yang. Upon searching with the fingers, there is a pulse at both ends but completely empty in the middle; this is called the Kou pulse (Gu Mai). It governs strangury (lin li) and qi entering the Small Intestine.
Two Kou pulses represent Yang Fire. What is Yang Fire? It is the fire of the Small Intestine. The Li trigram symbolizes Fire, and its image is hollow in the middle. Therefore, the finger technique states: upon searching with the fingers, there is [pulse] at both ends but completely empty in the middle, which corresponds to the image of the Li trigram. Generally, Ding Fire is Yin Fire, governing the Hand Shaoyin Heart Meridian; Bing Fire is Yang Fire, governing the Hand Taiyang Small Intestine Meridian. The Hand Taiyang meridian corresponds to the Small Intestine, hence the governing diseases are strangury and qi entering the Small Intestine. This theory is detailed in the preceding "Mai Fu" (Pulse Ode). The floating Kou pulse has an opposite morphology; please refer to the section "Floating and Kou Pulses Have Opposite Shapes." Jiegu (Zhang Yuansu) said: String-like, floating, and weak; pressing reveals emptiness in the center and presence on both sides; this is called the Kou pulse. The Kou pulse governs blood loss. Both the Hand and Foot Taiyang meridians have abundant blood and little qi, hence they govern strangury and qi entering the Small Intestine. Patients with hemorrhagic diseases all follow the theories of the Taiyang meridians.
According to the *Mai Jing* (Classic of Pulse Diagnosis): The Kou pulse is floating, large, and soft; pressing reveals emptiness in the center and solidity on both sides. Another description says: Empty in the middle, present on both sides.
Upon searching with the fingers, the middle is empty; pathogenic wind penetrates and resides in the Small Intestine. During illness, there is strangury accompanied by pain. Administering decoctions or pills vigorously will surely eliminate the disease.
Upon searching with the fingers, the middle is empty; this is the image of Fire. The nature of Fire is hot; heat generates wind, hence it is said that pathogenic wind penetrates into the Small Intestine, causing diseases of strangury and pain. The practitioner should prepare vigorous decoctions or pills to drain the fire of the Small Intestine, so that strangury will stop naturally and pain can be eliminated. Yun Qizi said: The Kou pulse governs blood coagulation without flow. The twelve meridians of the human body correspond to ditches; if Ying-Wei and Qi-Blood do not disperse and cannot fill the meridians fully, the Kou pulse appears. It governs strangury, pus in urine, and blood. One should prepare vigorous decoctions or pills. Use Si Wu Tang (Four Substance Decoction) and Di Huang Wan (Rehmannia Pill) to tonify, and Tao Ren Cheng Qi Tang (Tao Ren Da Huang Mang Xiao Hou Po Tang) to purge. Another opinion suggests using Da Chai Hu Tang (Major Bupleurum Decoction). Wu Wenbing said: Empty in the middle, present at both ends, absent in the center. The Kou pulse governs blood loss. The Heart governs Blood; if the Heart has heat and blood moves recklessly, the Kou pulse appears. Heat generates pathogenic wind; since the Heart does not accept pathogens, they transmit to the Small Intestine, resulting in strangury and pain in urination. One must use Ba Zheng San (Eight Herb Powder for Rectification) and Dao Chi San (Guide Out Red Powder) to clear pathogenic heat.