经曰∶阴搏阳别，是为孕脉。又曰∶手少阴脉动甚者，孕也，或谓流利雀啄之脉，孕数月之象也。予每诊
之，亦有不然。惟见两关滑而流利，知是孕也。或问∶何以现下两关？予曰∶两关者，肝脾之部位。盖肝藏血，
脾统血，血不流行于经，乃凝成而为孕，所以现于两关，滑而和匀，最为有准。此前人所未发之秘旨。或问∶
闭经之脉，亦于关乎？予曰∶经闭之脉必涩滞，亦不定于两关。叶孕之脉必滑利，是一定在两关。初孕之时，
常见两尺沉伏之状，此予数十年来悟得之秘，今着之于书，以为准绳。再以其人病，脉不病并与前贤论参考，
则庶几临诊无错矣。
古人谓左寸为阳，脉浮大者为男。右寸为阴，脉沉实者为女。两寸皆大，主双男。两寸实，主双女。予常
诊大而旺者多女，沉静而两手和匀，定生男儿。其两手脉，偏于左大者男，旺于右手者女，此又易于辨也。然
又有其人平素之脉，本属六阳六阴，又不可以大小辨也。只在细察其情。左尺实者是男，右尺实者是女也。其
双胎之脉，大抵两手均大而旺，又何独在寸脉一部而然？要知前人只以论理而不能尽形于笔端。诊者当于心领
神会，体察其人之浓薄，血气之旺衰，斯得之矣，又有血旺之人未及月而孕脉现。血不足之人，二月尚未见孕
脉，此亦本体之浓薄耳。
《黄帝内经》中说：阴脉搏动有力而与阳脉有别，这是怀孕的脉象。又说：手少阴心经对应的脉搏跳动明显剧烈的，是怀孕；也有人认为流利如雀啄般的脉象，是怀孕数月的征象。但我每次诊察时，发现情况并非总是如此。只有见到两手关部脉象滑利流畅，才确定是怀孕。有人问：为什么脉象表现在两关部位？我回答说：两关部位对应的是肝和脾。因为肝主藏血，脾主统血，血液不正常运行于经脉中，而是凝聚起来形成妊娠，所以脉象反映在两关，且滑利而调和均匀，最为准确。这是前人未曾揭示的秘密旨意。有人问：闭经的脉象，是否也表现在关部？我回答说：闭经的脉象必然涩滞不畅，而且不一定局限于两关。而怀孕的脉象必然滑利，是一定表现在两关。在初孕之时，常见两尺部脉象沉伏的状态，这是我数十年来领悟到的秘密，现在记载在书中，作为诊断的标准准则。再结合患者是否有其他疾病、脉象与病情是否相符，并与前贤的理论相互参考，那么临床上就几乎不会出错了。
古人说左寸部属阳，脉象浮大的预示生男孩。右寸部属阴，脉象沉实的预示生女孩。两寸脉都大，主生两个男孩。两寸脉都实，主生两个女孩。我经常诊察发现，脉象大而旺盛的多生女孩，脉象沉静且两手调和均匀的，一定生男孩。如果两手脉象偏于左侧大的生男孩，右侧旺盛的生女孩，这又比较容易辨别。然而又有的人平素脉象本身就属于六阳或六阴脉，就不能单凭脉象大小来辨别了。只能仔细体察其具体情况。左尺部脉实的是生男孩，右尺部脉实的是生女孩。至于双胎的脉象，大体上是两手脉都大而旺盛，又何必只在寸脉一部去判断呢？要知道前人只是论述理论而不能完全将形态描绘在笔端。诊察者应当心领神会，观察孕妇体质的厚薄、气血的旺衰，这样才能掌握要领。还有气血旺盛的人，不到一个月就能出现妊娠脉象；气血不足的人，两个月还看不到妊娠脉象，这也是体质厚薄不同的原因罢了。
The *Huangdi Neijing* (Yellow Emperor's Inner Canon) states: "When the Yin pulse beats forcefully and is distinct from the Yang pulse, this indicates pregnancy." It also says: "If the pulse corresponding to the Hand-Shaoyin Heart meridian beats significantly vigorously, it indicates pregnancy." Some argue that a smooth, quick pulse resembling the pecking of a sparrow is a sign of several months' gestation. However, upon my frequent examination, I find this not always to be the case. Only when I observe a smooth and fluent pulse at both Guan positions (middle position on the radial artery, corresponding to Liver and Spleen) do I confirm pregnancy. Someone asked: "Why does the pulse manifest at the two Guan positions?" I replied: "The Guan positions correspond to the Liver and Spleen. The Liver stores blood, and the Spleen controls blood. When blood does not flow normally through the meridians but instead coagulates to form a pregnancy, the pulse manifests at the Guan positions. A smooth, harmonious, and even pulse here is most accurate. This is a secret principle unexposed by predecessors." Someone asked: "Does the pulse for amenorrhea (cessation of menstruation) also manifest at the Guan position?" I replied: "The pulse for amenorrhea must be choppy and stagnant, and it is not necessarily confined to the Guan positions. In contrast, the pulse for pregnancy must be smooth and fluent, and it definitely manifests at the Guan positions. At the early stage of pregnancy, it is common to see a deep and hidden pulse at both Chi positions (distal position on the radial artery, corresponding to Kidney). This is a secret I have realized over decades of practice, now recorded in this book as a standard criterion. By combining this with whether the patient has other diseases, whether the pulse matches the condition, and referencing the theories of former sages, one can avoid errors in clinical diagnosis."
Ancients stated: The left Cun position (proximal position on the radial artery) belongs to Yang; a floating and large pulse indicates a male fetus. The right Cun position belongs to Yin; a deep and solid pulse indicates a female fetus. If both Cun pulses are large, it suggests twins of the male sex. If both Cun pulses are solid, it suggests twins of the female sex. I often observe that a large and vigorous pulse tends to indicate a girl, while a calm pulse with harmony between both hands indicates a boy. If the pulse on the left hand is larger, it indicates a boy; if the right hand is more vigorous, it indicates a girl. This is relatively easy to distinguish. However, some individuals have constitutions naturally characterized by Six-Yang or Six-Yin pulses, so gender cannot be determined solely by pulse size. One must carefully examine the specific situation. A solid pulse at the left Chi position indicates a boy; a solid pulse at the right Chi position indicates a girl. Regarding twin pregnancies, generally, both hands show large and vigorous pulses; why restrict judgment only to the Cun position? One must understand that predecessors discussed principles but could not fully depict forms in writing. The examiner should grasp the essence intuitively, observing the thickness of the constitution and the vigor or decline of Qi and Blood. Furthermore, individuals with abundant Qi and Blood may show a pregnancy pulse before one month, while those with deficient Qi and Blood may not show it until after two months. This is also due to differences in constitutional thickness.