体象 动无头尾，其动如豆；厥厥动摇，必兼滑数。
主病 动脉主痛，亦主于惊。左寸得动，惊悸可断。右寸得动，自汗无疑。左关若动，惊及拘挛。
右关若动，心脾疼痛。左尺见之，亡精为病。右尺见之，龙火奋迅。
【按】动之为义，以厥厥动摇，急数有力得名也。两头俯下，中间突起，极与短脉相类；但短脉为阴，
不数不硬不滑也。关前为阳，关后为
阴。故仲景云∶“阳动则汗出”，分明指左寸属心，汗为心之液，右寸属肺，主皮毛而司腠理，故汗出也。
又曰∶“阴动则发热”，分明指左尺见动，为肾水之不足，右尺见动，谓相火虚炎，故发热也。因是而知旧
说言动脉只见于关上者，非也。且《素问》曰∶“妇人手少阴心脉动甚者，为妊子也”，然则手少阴明隶于左
寸矣，而谓独见于关可乎！成无己曰∶“阴阳相搏，则虚者动，故阳虚则阳动，阴虚则阴动”，以关前为阳，
主汗出，关后为阴，主发热，岂不精妥！而庞安常强为之说云∶“关前三分为阳，关后三分为阴，正当关位，
半阴半阳，故动随虚见”，是亦泥动脉只见于关之说也。高阳生伪诀云∶“寻之似有，举之还无”，是弱脉而
非动脉矣。又曰∶“不离其处，不往不来，三关沉沉”，含糊谬妄，无一字与动脉合义矣。
詹氏曰∶“如钩如毛”，则混于浮大之脉，尤堪捧腹。
【脉象特征】动脉没有明显的头尾，搏动时像豆子一样；跳动急促不安，必然兼有滑脉和数脉的特征。
【主病】动脉主要主疼痛，也主惊恐。左手寸口出现动脉，可以断定是惊悸证。右手寸口出现动脉，无疑是自汗证。左手关部出现动脉，是惊恐及肢体拘挛的表现。
右手关部出现动脉，是心脾部位疼痛。左手尺部见到动脉，是失精导致的疾病。右手尺部见到动脉，是命门之火（相火）亢奋躁动的表现。
【按语】“动”字的含义，是因为其跳动急促不安、急迫快速且有力而得名。脉搏两头低伏，中间突起，与短脉非常相似；但短脉属于阴脉，不具备数、硬、滑的特征。关前为阳，关后为阴。所以张仲景说：“阳动则汗出”，这明确指左手寸口属心，汗为心之液，右手寸口属肺，主管皮毛并司理腠理，所以会出现汗出。又说：“阴动则发热”，这明确指左手尺部见到动脉，是肾水不足所致，右手尺部见到动脉，是指相火虚性上炎，所以出现发热。由此可知，旧的说法认为动脉只出现在关部，是不正确的。而且《素问》说：“妇女手少阴心脉跳动特别明显的，是怀孕的迹象”，既然手少阴心脉明确归属于左手寸口，怎么能说动脉只出现在关部呢！成无己说：“阴阳相互搏击，虚弱的一方就会表现为动脉，所以阳虚则阳动，阴虚则阴动”，以关前为阳，主汗出，关后为阴，主发热，难道不精当妥当吗！而庞安常强行解释说：“关前三分为阳，关后三分为阴，正当关位的地方，半阴半阳，所以动脉随着虚弱之处而出现”，这也是拘泥于动脉只见于关部的说法。高阳生伪托的诀文中说：“寻取时似乎有，轻举时反而无”，这是弱脉而不是动脉了。又说：“不离其处，不往不来，三关沉沉”，含糊荒谬妄诞，没有一个字符合动脉的含义。詹氏说：“像钩子又像羽毛”，这就混淆于浮大脉中，尤其令人捧腹大笑。
[Pulse Image] The Dong (Moving) pulse has no distinct head or tail; its movement resembles a bean. It trembles restlessly and must be accompanied by the characteristics of the Hua (Slippery) and Shuo (Rapid) pulses.
[Main Indications] The Dong pulse primarily indicates pain, and also indicates fright. If the Dong pulse is found at the left Cun (Inch) position, palpitations due to fright can be diagnosed. If the Dong pulse is found at the right Cun position, spontaneous sweating is undoubtedly present. If the Dong pulse is found at the left Guan (Bar) position, it indicates fright and muscle spasms/contracture.
If the Dong pulse is found at the right Guan position, it indicates pain in the Heart and Spleen regions. If seen at the left Chi (Cubit) position, it indicates disease resulting from loss of essence. If seen at the right Chi position, it indicates the vigorous and restless excitation of Mingmen Fire (Ministerial Fire).
[Commentary] The meaning of "Dong" derives from its restless trembling, urgency, speed, and strength. The two ends of the pulse are depressed while the middle protrudes, making it very similar to the Duan (Short) pulse; however, the Duan pulse is Yin, lacking the qualities of rapidity, hardness, and slipperiness. The area anterior to the Guan is Yang, and the area posterior to the Guan is Yin. Therefore, Zhang Zhongjing stated: "Yang Dong leads to sweating." This clearly refers to the left Cun belonging to the Heart, where sweat is the fluid of the Heart, and the right Cun belonging to the Lung, which governs the skin and hair and controls the pores, thus leading to sweating. He further stated: "Yin Dong leads to fever." This clearly refers to the left Chi showing Dong as a sign of insufficient Kidney Water, and the right Chi showing Dong as a sign of deficient Ministerial Fire flaring upward, thus causing fever. From this, we know that the old theory claiming the Dong pulse appears only at the Guan position is incorrect. Moreover, the *Suwen* states: "When the Hand-Shaoyin Heart pulse of a woman moves vigorously, it indicates pregnancy." Since the Hand-Shaoyin Heart pulse clearly belongs to the left Cun, how can one claim it appears exclusively at the Guan? Cheng Wuji said: "When Yin and Yang contend, the deficient aspect manifests as Dong; thus, Yang deficiency leads to Yang Dong, and Yin deficiency leads to Yin Dong." By defining the anterior Guan as Yang (governing sweating) and the posterior Guan as Yin (governing fever), is this not precise and appropriate? However, Pang Anchang forcibly argued: "Three parts anterior to the Guan are Yang, three parts posterior are Yin; the position exactly at the Guan is half-Yin and half-Yang, so Dong appears according to the site of deficiency." This is also adhering rigidly to the theory that Dong appears only at the Guan. The apocryphal verses attributed to Gao Yangsheng state: "Sought, it seems present; lifted, it vanishes." This describes the Ruo (Weak) pulse, not the Dong pulse. They further state: "Stays in its place, neither coming nor going, the Three Guan are heavy and deep." This is vague, absurd, and erroneous, with not a single word matching the meaning of the Dong pulse. Zhan Shi stated: "Like a hook or like a feather," which confuses the pulse with Fu (Floating) and Da (Large) pulses, an argument particularly worthy of ridicule.