老弱之人，脉宜缓弱；若过旺者，病也。少壮之人，脉宜充实；若过弱者，病也。然又有说焉。老人
脉旺而非躁者，此天禀之浓，引年之叟也，名曰寿脉；若脉躁疾，有表无里，则为孤阳，其死近矣。壮者脉
细而和缓，三部同等，此天禀之静，清逸之士也，名曰阴脉；若细小劲直，前后不等，可以决死期矣。
（增补）
逐脉审察者，一定之矩也；随人变通者，圆机之士也。肥盛之人，气居于表，六脉常带浮洪；瘦小之人，
气敛于中，六脉常带沉数。性急之人，五至方为平脉；性缓之人，四至便作热看。身长宜疏下指；身短宜密下
指。北人多实；南人多弱。酒后之脉常数；饭后之脉常洪。远行必疾；久饥必虚。室女常
濡；婴儿常数。经曰∶“形气相得者生，三五不调者死。”其可不察乎！
以寸关尺三部言之，尺为根，关为干，寸为枝叶。若尺部
无神，则无根矣。以浮中沉三候言之，沉候为根，中候为干，浮候为枝叶。若沉候不应，则无根矣。
阴搏阳别，谓之有子。（谓尺中之阴脉搏大，与寸部之阳部迥别者，乃有子也。）阴虚阳搏，谓
之崩。（阴虚，血衰于下，则阳火上亢矣。血为火迫，不得而安其位，乃为崩漏之疾。）手少阴脉动甚者，
妊子也。（手少阴者，心脉也。动甚者，形如豆粒，急数有力也。心
主血，血旺乃能成胎。心脉动甚，血旺之象，故当妊子。）
滑伯仁曰∶“三部脉浮沉正等，无他病而不月者，为有妊也。得太阴脉为男，得太阳脉为女。太阴
脉沉，太阳脉浮。左疾为男，右疾为女。左右俱疾，为生二子。尺脉左大为男，右大为女。左右俱大，产二子。”
“左手沉实为男，右手浮大为女。左右手俱沉实，猥生二男；左右手俱浮大，猥生二女。”
“左右尺俱浮，为产二男；不尔则女作男生。（谓一男一女之胎，女胎死而男胎生。）”
左右尺俱沉，为产二女；不尔则男作女生。
“妇人阴阳俱盛，曰双躯。（言左右两尺部俱大而有力也。）若少阴微紧者，血
积凝浊，经养不周，胎则偏夭，其一独死，其一独生。不去其
死，害母失胎。”
“何以知怀子之且生也。岐伯曰∶身有病而无邪脉也。”
（有病，如腹痛拘急之类。无邪脉，谓无病脉也。）妇人欲生，其脉离经，夜半觉，日中则生也。
（离经者，谓离于经常之脉，如昨小今大，昨涩今滑，昨浮今沉之类。夜半觉，日中生子者，子午相冲也。）
妇人经断有躯，其脉弦者，后必血下，不成胎也。（弦者，肝脉也。肝主疏
泄。今见弦，则肝脉太过，不能藏血也。）
妇人尺脉微迟，为居经，月事三月一下。（微迟者，虚寒之脉也。居经，犹云停经也。三
月一下，为血不足也。）
妇人尺脉微弱而涩，少腹冷，恶寒，年少得之为无子；年大得之为绝产。
新产伤阴，出血不止，尺脉不能上关者，死。
年老体弱之人，脉象应当缓和无力；如果脉象过于旺盛，则是病态。年轻力壮之人，脉象应当充实有力；如果脉象过于微弱，则是病态。然而还有另一种说法。老年人脉象旺盛但不急躁的，这是先天禀赋浓厚、高寿的老人，称为“寿脉”；如果脉象躁动急疾，只有表浅之象而没有沉取之根（有表无里），这就是孤阳外越，离死期不远了。壮年人脉象细弱但和缓均匀的，三部脉（寸、关、尺）力度相当，这是先天禀赋宁静、清闲高雅的人，称为“阴脉”；如果脉象细小且劲直僵硬，前后（寸与尺）力度不等，就可以断定其死期了。
（增补内容）
逐一仔细审察脉象，是固定的准则；根据人的具体情况灵活变通，才是圆融机智的高明医生。身体肥胖的人，气机浮越于体表，六部脉常带有浮洪之象；身体瘦小的人，气机收敛于体内，六部脉常带有沉数之象。性情急躁的人，脉搏每息五至才算是平脉；性情缓慢的人，脉搏每息四至就要当作热证来看待。身材高大者，指下疏朗些为宜；身材矮小者，指下紧密些为宜。北方人多实证；南方人多虚证。饮酒后的脉象通常数（快）；进食后的脉象通常洪大。长途跋涉后脉象必疾速；长期饥饿后脉象必虚弱。未婚女子脉象常濡软；婴儿脉象常数（快）。医经说：“形体与气机相协调的能生存，脉象三五不调（紊乱）的会死亡。”这怎么能不仔细考察呢！
从寸、关、尺三部来说，尺部为根，关部为干，寸部为枝叶。如果尺部没有神气，就是无根。从浮、中、沉三候来说，沉候为根，中候为干，浮候为枝叶。如果沉候摸不到脉动，就是无根。
尺部阴脉搏动盛大，与寸部阳脉截然不同，这叫作怀孕。（意思是尺部的阴脉搏动大而有力，与寸部的阳脉明显区别开，就是怀孕了。）阴虚而阳脉搏动有力，这叫作崩漏。（阴虚，即下部血衰少，导致阳火上亢。血液被火邪逼迫，不能安守其位，于是发生崩漏的疾病。）手少阴心经脉动明显的，是怀孕。（手少阴脉，即心脉。动甚，指脉形如豆粒跳动，急促、快速且有力。心主血脉，血旺才能成胎。心脉动甚，是血旺的表现，所以应当是怀孕。）
滑伯仁说：“三部脉浮沉力度相等，没有其他疾病但月经停止的，是怀孕。诊得太阴脉生男孩，诊得太阳脉生女孩。太阴脉沉，太阳脉浮。左手脉疾速为生男，右手脉疾速为生女。左右手都疾速，生双胞胎。尺脉左边大为男，右边大为女。左右尺脉都大，生双胞胎。”“左手脉沉实为生男，右手脉浮大为生女。左右手都沉实，多生两个男孩；左右手都浮大，多生两个女孩。”“左右尺脉都浮，生两个男孩；不然的话，就是一个男胎一个女胎，女胎死了男胎活着。”“左右尺脉都沉，生两个女孩；不然的话，就是一个男胎一个女胎，男胎死了女胎活着。”“妇人阴阳脉都旺盛，叫作双躯（意思是左右两尺部脉都大而有力）。如果少阴脉微紧，说明血积凝浊，滋养胎儿的气血不充足，胎儿就会偏枯夭折，其中一个独死，另一个独活。如果不除去那个死的胎儿，会伤害母亲并失去存活的胎儿。”
“怎么知道孕妇快要分娩了呢？岐伯说：‘身体有病状但没有病脉。’”（有病状，比如腹痛拘急之类。无邪脉，指没有疾病的脉象。）妇人将要分娩，其脉象离开正常的经脉规律，半夜感觉到征兆，中午就分娩了。（离经，指离开经常性的脉象，比如昨天小今天大，昨天涩滞今天滑利，昨天浮今天沉之类。半夜感觉征兆，中午分娩，是因为子午相冲的缘故。）妇人月经中断而有身孕，脉象弦硬的，后来必然会有阴道出血，不能成胎。（弦脉，是肝脉。肝主疏泄。现在见到弦脉，说明肝脉太过，不能藏血。）
妇人尺脉微迟，叫作居经，月经三个月来一次。（微迟，是虚寒的脉象。居经，就是说停经。三个月来一次，是因为血不足。）
妇人尺脉微弱而涩，小腹冷，怕冷，年轻时得的不能生育；年纪大的得的绝育。
新产后损伤阴血，出血不止，尺脉不能上达关部的，死。
For elderly and weak individuals, the pulse should be slow and weak; if it is excessively vigorous, it indicates disease. For young and robust individuals, the pulse should be full and solid; if it is excessively weak, it indicates disease. However, there is another perspective. When an elderly person has a vigorous pulse but not one that is restless or rapid, this indicates strong congenital endowment and longevity; such a person is called a "Longevity Pulse" (Shou Mai). If the pulse is restless and rapid, appearing superficial without depth (having exterior but lacking interior root), it represents solitary Yang floating outward, indicating death is near. When a robust adult has a fine yet harmonious and slow pulse, with equal strength in all three positions (Cun, Guan, Chi), this indicates a tranquil congenital constitution and refined character; such a pulse is called a "Yin Pulse". If the pulse is fine, small, stiff, and straight, with unequal strength between the anterior (Cun) and posterior (Chi) positions, the time of death can be determined.
(Addendum)
Examining each pulse meticulously is a fixed standard; adapting flexibly to individual circumstances belongs to the wise and versatile physician. In obese individuals, Qi resides at the surface, so the six pulses often carry a Floating-Hong (Superficial-Excessive) quality. In thin individuals, Qi is gathered within, so the six pulses often carry a Chen-Shu (Deep-Rapid) quality. In persons with irritable temperaments, five beats per respiration cycle constitute a normal pulse; in persons with calm temperaments, four beats per respiration cycle should be viewed as Heat syndrome. For tall people, fingers should be placed more sparsely; for short people, fingers should be placed more closely. People from the North tend toward Excess patterns; people from the South tend toward Deficiency patterns. The pulse after drinking wine is usually Rapid; the pulse after eating is usually Hong (Excessive/Expansive). After long travel, the pulse must be Rapid; after prolonged fasting, the pulse must be Weak. Unmarried women's pulses are often Ru (Soggy); infants' pulses are often Shu (Rapid). The Classic states: "When Form and Qi are compatible, life prevails; when the pulse is chaotic and irregular, death ensues." How can one fail to examine this carefully!
Speaking of the Cun, Guan, and Chi positions: Chi is the Root, Guan is the Trunk, and Cun is the Branches and Leaves. If the Chi position lacks Shen (Spirit/Vitality), there is no Root. Speaking of the Fu, Zhong, and Chen depths: Chen (Deep) is the Root, Zhong (Middle) is the Trunk, and Fu (Superficial) is the Branches and Leaves. If the Chen depth yields no response, there is no Root.
When the Yin pulse at the Chi position beats vigorously and distinctly differs from the Yang pulse at the Cun position, it signifies pregnancy. (This means the Yin pulse at Chi is large and forceful, clearly distinct from the Yang pulse at Cun, indicating pregnancy.) When Yin is deficient and Yang pulses are vigorous, it signifies Beng (Metrorrhagia/Metrostaxis). (Yin deficiency implies blood depletion below, causing Yang Fire to flare upward. Blood is forced by fire and cannot remain in its proper place, resulting in Beng-Lou [profuse uterine bleeding].) When the Hand-Shaoyin (Heart) pulse moves significantly, it indicates pregnancy. (Hand-Shaoyin refers to the Heart pulse. "Moving significantly" means the pulse feels like a bean grain, urgent, rapid, and forceful. The Heart governs Blood; abundant blood enables conception. A significant Heart pulse movement is a sign of abundant Blood, thus indicating pregnancy.)
Hua Bo-ren said: "If the three positions (Cun, Guan, Chi) have equal Fu-Zhong-Chen qualities, and menstruation has ceased without other diseases, it is pregnancy. Obtaining a Taiyin pulse indicates a male fetus; obtaining a Taiyang pulse indicates a female fetus. Taiyin pulse is Deep; Taiyang pulse is Superficial. A rapid pulse on the left indicates a male; a rapid pulse on the right indicates a female. Rapid pulses on both sides indicate twins. A larger Chi pulse on the left indicates a male; a larger Chi pulse on the right indicates a female. Larger Chi pulses on both sides indicate twins." "A deep-solid pulse on the left hand indicates a male; a floating-large pulse on the right hand indicates a female. Deep-solid pulses on both hands indicate multiple males; floating-large pulses on both hands indicate multiple females." "Floating pulses on both Chi positions indicate two males; otherwise, it is a mixed pair where the female fetus dies and the male survives." "Deep pulses on both Chi positions indicate two females; otherwise, it is a mixed pair where the male fetus dies and the female survives." "When a woman's Yin and Yang pulses are both excessive, it is called 'Shuang Qu' (Double Body), meaning both Chi positions are large and forceful. If the Shaoyin pulse is slightly tight, it indicates blood stasis and turbidity, insufficient nourishment for the fetus, leading to unilateral fetal demise (one dies, one lives). If the dead fetus is not expelled, it will harm the mother and cause the loss of the living fetus."
"How do we know childbirth is imminent? Qibo said: 'The body has symptoms, but the pulse is free of pathological signs.'" (Symptoms include things like abdominal pain and cramping. No pathological signs mean the absence of disease-specific pulses.) When a woman is about to give birth, her pulse deviates from the regular pattern. If she perceives this change at midnight (Zi hour), she will deliver at noon (Wu hour). (Deviation from the regular pattern means changes such as small to large, choppy to slippery, or superficial to deep. Midnight perception and noon delivery occur due to the opposition of Zi and Wu hours.) If a woman has amenorrhea due to pregnancy but the pulse is Xian (Wiry), she will subsequently experience vaginal bleeding and fail to carry the fetus to term. (Xian pulse corresponds to the Liver. The Liver governs free flow and storage of blood. A Xian pulse indicates Liver excess, implying an inability to store blood.)
If a woman's Chi pulse is micro-slow (Wei-Chi), it is called Ju Jing (Residing Menses), where menstruation occurs once every three months. (Wei-Chi is a pulse of deficiency-cold. Ju Jing implies arrested menses. Occurring once every three months indicates blood insufficiency.)
If a woman's Chi pulse is weak, faint, and choppy, accompanied by cold lower abdomen and aversion to cold, if acquired in youth, it indicates infertility; if acquired in old age, it indicates sterility.
After recent childbirth, if Yin is damaged and bleeding does not stop, and the Chi pulse cannot reach up to the Guan position, death ensues.