（素问平人气象论 阴阳别论）
妇人手少阴脉动甚者，任子也。（素问平人气象论。手少阴，心脉也。脉要精微论曰∶上附上，左外以候心。故心脉
当诊于左寸。动甚者，流利滑动也。心生血，血旺乃能胎，妇人心脉动甚者，血旺而然，故当妊子。启玄子云∶手少阴
脉，谓掌后陷者中，当小指动而应手者也。盖指心经之脉，即神门穴也，其说甚善；然以余之验，左寸亦应。任，妊同，
孕也。）
阴搏阳别，谓之有子。（素问阴阳别论。阴，如前手少阴也，或兼足少阴而言亦可。盖心主血，肾主子宫，皆胎孕之
所主也。搏，搏击于手也。阳别者，言阴脉搏手，似乎阳邪，然其鼓动滑利，本非邪脉，盖以阴中见阳而别有和调之象，
是谓阴搏阳别也。腹中论曰∶何以知怀子之且生也？曰∶身有病而无邪脉也。亦此之义。王氏脉经曰∶尺中之脉，按之
不绝，法妊娠也。滑伯仁曰∶三部脉浮沉正等，无他病而不月者，妊也。愚按∶妊子有子之义，乃男子女子之通称。盖
本经以孕育为言，而于男女皆称子，非男曰子而女则否也，后世以此为男子者非。然本经未分男女，而男女之别将何如？
考之叔和脉经曰∶左疾为男，右疾为女。又曰∶左手沉实为男，右手浮大为女。又曰∶尺脉左偏大为男，右偏大为女。
又曰；得太阴脉为男，得太阳脉为女；太阴脉沉，太阳脉浮。自后凡言妊脉者，总不出此。及滑伯仁则曰∶左手尺脉洪
大为男，右手沉实为女。近代徐东皋曰∶男女之别，须审阴阳。右肺盛，阴状多，俱主弄瓦；左尺盛，阳状多，俱主弄
璋。备察诸义，固已详尽；然多彼此矛盾，难以凭据。若其不易之理，则在阴阳二字。以左右分阴阳，则左为阳右为阴；
以寸尺分阴阳，则寸为阳尺为阴；以脉体分阴阳，则鼓搏沉实为阳，虚弱浮涩为阴；诸阳实者为男，诸阴虚者为女，庶
为一定之论。然犹当察孕妇之强弱老少，及平日之偏左偏右，尺寸之素强素弱，斯足以尽其妙也。）
(From *Suwen: Pingren Qixiang Lun* and *Yinyang Bie Lun*)
If the Hand-Shaoyin pulse in a woman is markedly vigorous and slippery, it indicates pregnancy. (*Suwen: Pingren Qixiang Lun*. The Hand-Shaoyin pulse refers to the Heart pulse. *Ma Yao Jing Wei Lun* states: "At the upper level of the cun position, the lateral side on the left corresponds to the Heart." Therefore, the Heart pulse should be palpated at the left Cun position. "Vigorous" (Dong Shen) refers to a smooth and slippery quality. The Heart governs blood generation; abundant blood is necessary to nourish the fetus. When a woman's Heart pulse is vigorous and slippery, it results from abundant blood, thus indicating pregnancy. Qixuanzi stated: "The Hand-Shaoyin pulse refers to the depression behind the palm, where pulsation is felt when pressing near the little finger." This refers to the Heart meridian, specifically the Shenmen acupoint (Shenmen), which is a sound interpretation; however, based on my clinical experience, the left Cun position should also respond. "Ren" is synonymous with "Ren" (pregnancy).)
When the Yin pulse beats vigorously and differs distinctly from the Yang pulse, it is called having a child. (*Suwen: Yinyang Bie Lun*. Here, "Yin" refers to the Hand-Shaoyin pulse mentioned earlier, or may also include the Foot-Shaoyin pulse. This is because the Heart governs blood, and the Kidney governs the uterus; both are organs primarily responsible for gestation. "Bo" means the pulse strikes against the fingers. "Yang Bie" implies that although the Yin pulse feels vigorous like a Yang pathogen, its beating is smooth and slippery, inherently not a pathological pulse. Instead, it shows a harmonious image where Yang appears within Yin, termed "Yin Bo Yang Bie". *Fuzhong Lun* asks: "How do we know a woman is about to give birth?" The answer is: "The body has symptoms but no pathogenic pulses." This conveys the same meaning. Wang Shuhe's *Mai Jing* states: "If the Chi pulse remains unceasing upon pressure, it is the method for diagnosing pregnancy." Hua Bolin stated: "If the pulses at all three positions (Cun, Guan, Chi) are equal in floating and sinking depth, there are no other diseases, yet menstruation has ceased, it is pregnancy." I observe that "Ren Zi" (pregnant child) shares the meaning of "You Zi" (having a child), serving as a general term for both men and women in this context. Since the classic text discusses conception, it uses "Zi" for both genders; it does not mean "Zi" applies only to males while excluding females. Later interpretations claiming this refers exclusively to males are incorrect. However, since the classic text does not distinguish between sexes, how can one differentiate? Examining Wang Shuhe's *Mai Jing*: "Rapid pulse on the left indicates a male; rapid pulse on the right indicates a female." It further states: "Deep and solid pulse on the left indicates a male; floating and large pulse on the right indicates a female." Also: "Chi pulse enlarged on the left indicates a male; enlarged on the right indicates a female." And: "Obtaining the Taiyin pulse indicates a male; obtaining the Taiyang pulse indicates a female; Taiyin pulse is deep, Taiyang pulse is floating." Subsequent discussions on pregnancy pulses generally adhere to these principles. Later, Hua Bolin stated: "Large and vigorous Chi pulse on the left indicates a male; deep and solid pulse on the right indicates a female." Xu Donggao of recent times stated: "To distinguish between male and female, one must examine Yin and Yang. If the Lung pulse on the right is strong, showing more Yin characteristics, it indicates a daughter (playing with tiles); if the left Chi pulse is strong, showing more Yang characteristics, it indicates a son (playing with jade)." While examining all these theories is thorough, they often contradict each other and are difficult to rely upon. If there is an immutable principle, it lies in the concept of Yin and Yang. Differentiating by left and right: Left is Yang, Right is Yin. Differentiating by Cun and Chi: Cun is Yang, Chi is Yin. Differentiating by pulse morphology: Vigorous, deep, and solid pulses are Yang; weak, floating, and choppy pulses are Yin. Generally, Yang-excess pulses indicate a male, and Yin-deficiency pulses indicate a female. This constitutes a fixed theory. Nevertheless, one must still observe the strength, age, and constitution of the pregnant woman, as well as whether her habitual pulse favors the left or right, and whether the Cun or Chi positions are naturally strong or weak, to fully grasp the subtleties.)