肝为血兮肺为气。血为荣兮气为卫。荣卫和谐胎必成。血衰气盛未有体。寸微关滑尺带数。
流利往来如雀啄。孕妇之脉已见形。数月怀耽休认错。三部浮沉平正等。尺按不绝胎其确。(
无止方是) 滑而且散三月胎。(散者。心脉三月。心胞养胎故尔。) 但滑不散五月母。(经
云。妇人手少阴脉动甚者妊也。动如豆厥厥动摇也。心主血。胎成则血聚护胎。故心脉动。
或亦有不动而是胎者。乃作足少阴非也。盖动者壮妇血盛也。不动者弱妇血少也。阴搏阳别
谓之有子。左阴右阳。尺阴寸阳。沉阴浮阳。搏者淤触于手也，胎必热故脉搏。阴者胎之所
居也。妇人时时衄血而转筋者。躯。衄时嚏而动者。非躯。妇人寸口脉波浮而大。荣反弱。
浮大气强。反弱血少。孤阳独呼。阴不能吸。二气不停。卫强荣弱。积为阴寒。阳为聚热。
阳盛不润。经络不足。阴虚阳旺。故令少血。时发喘淅。咽燥汗出。或溲稠数。多吐涎沫。
乃是重虚津液。漏泄经血。三月不来。名曰居经。非躯也。) 诸阳为男诸阴女。左右分明
肺肾取。(左盛男。右盛女。左右俱盛一男一女。) 左手带纵两个儿。右手带横一双女。(
夫乘妻为纵。妻乘夫为横。) 左手脉逆生三男。右手脉盛生三女。(子乘母为逆气。母乘子为顺
气。)
又男胎居左。女胎居右。胎之所居。气血聚焉。其脉滑利而盛。故左盛则男。右盛则女。尝
观痈疖发上则寸脉盛。发下则尺脉盛。发左则左脉盛。发右则右脉盛。此所以悟胎居之理也
。
The Liver governs Blood, and the Lung governs Qi. Blood constitutes Ying (Nutritive Qi), and Qi constitutes Wei (Defensive Qi). When Ying and Wei are harmonious, conception will surely occur; if Blood is deficient and Qi is excessive, a fetus cannot form. The Cun (inch) pulse is faint, the Guan (bar) pulse is slippery, and the Chi (cubit) pulse carries a rapid rate. Flowing smoothly and coming and going like a sparrow pecking, this indicates that the pregnant woman's pulse has manifested its form. Do not mistake this for other conditions after several months of pregnancy. If the pulses in all three positions (Cun, Guan, Chi) are equal in floating and sinking levels, and the Chi pulse does not cease when pressed (only when it does not cease is it confirmed), then the fetus is certain. A pulse that is both slippery and scattered indicates a three-month pregnancy (Scattered refers to the Heart pulse appearing at three months, because the Pericardium nourishes the fetus). A pulse that is merely slippery without scattering indicates a five-month pregnancy (The Classics state: "When the Hand Shaoyin pulse moves vigorously in women, she is pregnant." Movement resembles a bean quivering. The Heart governs Blood; when the fetus forms, Blood gathers to protect it, hence the Heart pulse moves. There are cases where there is no movement but pregnancy exists; this is the Foot Shaoyin [Kidney] pulse, not the Hand Shaoyin [Heart]. This is because "movement" indicates vigorous blood and Qi in strong women, while "no movement" indicates deficient blood and Qi in weak women. Yin pulsating and distinct from Yang is called having a child. Left is Yin, Right is Yang; Chi is Yin, Cun is Yang; Sinking is Yin, Floating is Yang. "Pulsating" means the pulse feels obstructed or striking against the fingers, as the fetus generates heat causing the pulse to be forceful. Yin is the residence of the fetus. If a woman frequently suffers from epistaxis and muscle spasms, this is a bodily illness, not pregnancy; if sneezing causes abdominal vibration, this is pregnancy. If a woman's Cun Kou pulse is floating and large, Ying is relatively weak. Floating and large indicate strong Qi, while relative weakness indicates deficient Blood. Solitary Yang exhales alone, Yin cannot inhale; the two energies do not stop. Wei is strong and Ying is weak, accumulating into Yin-cold, while Yang gathers into Heat. Excessive Yang fails to moisten, leading to insufficient meridians. Yin deficiency with Yang hyperactivity results in scanty Blood. She may occasionally suffer from panting, aversion to cold, dry throat, and sweating, or thick and frequent urination, and much salivary foam. This represents severe depletion of Body Fluids and leakage of menstrual blood. Menstruation does not come for three months, named "Ju Jing" (Residing Menses), which is not pregnancy.) All Yang pulses indicate a male, all Yin pulses indicate a female. Distinction between left and right involves taking the Lung and Kidney pulses (Left excess indicates a boy, Right excess indicates a girl, both excess indicates one boy and one girl). A Zong (vertical) pattern on the Left hand pulse produces two sons; a Heng (horizontal) pattern on the Right hand pulse produces two daughters (Husband overcoming Wife is Zong; Wife overcoming Husband is Heng). An Ni (reverse) pulse on the Left hand produces three sons; an excessive pulse on the Right hand produces three daughters (Child overcoming Mother is Ni Qi; Mother overcoming Child is Shun Qi).
Furthermore, male fetuses reside on the left, and female fetuses reside on the right. Where the fetus resides, Qi and Blood gather. The pulse there is slippery, smooth, and vigorous. Therefore, Left pulse excess indicates a male, and Right pulse excess indicates a female. I have observed that when carbuncles and boils erupt on the upper body, the Cun pulse is excessive; when they erupt on the lower body, the Chi pulse is excessive; when they erupt on the left, the Left pulse is excessive; when they erupt on the right, the Right pulse is excessive. From this, I comprehended the principle of fetal residence.