脉诀谓芤为失血，芤脉状如按环子，内面两头有，中间曲而缺，非谓绝也，若心脉肝脉
带芤，而肺脉浮以数，又肺脉微弦而紧，则骨蒸咯血。
心脉芤而肺脉软沉，尺脉沉伏，微微带紧，肠风下血。
心肺芤而尺脉紧，膀胱滑，小肠溺血。
肝脉芤而肺脉大浮而促，两手尺泽皆微，喘而咯血。
肝心肺脉俱盛洪大，而不甚有骨力，乍开乍合，如流水之状，此金火相传，当吐血，心
脉微而紧，促而朝上鱼际，急按即来迟去速，此为肠风，下血少，多心战，惮事，无心力，
肝脉长而动，下贯尺泽，心脉大而实，三焦血有余，亦当下血。
肝脉细微而涩，尺泽微，胃脉濡，大府失血。
心脉与肝脉不尽连接，如滴水起头，鼻衄出血，肺脉浮大而散，心脉大，鼻暴衄。
诀云∶紧为虫，为痔，须肝脉亦紧并细，方为痔不尔，即虫也。
六脉浮大，无骨力，来疾去迟，轻手带洪，重手取之如濡，此久害疮疖，血少，六脉浮
大，有骨力，肝脉弦而长，肺脉大而实沉，与胃相际，胃脉轻弦而濡，此三焦血泛，胃虚下
血。
六脉如常，心脉动，肾脉搏而沉，又细而数，血泄，或溺血，便血。
妇人胎孕，在手关寸脉滑数，而肺脉脉虚而毛，尺泽陷而与关脉不际者。孕也，若肝脉
长而溢寸，胎漏失血，胎下血有二，有肝气虚微，肾脉绵软，胎脉陷下，胎动而失血者，当
补之，若肝脉有余而失血，是胎溢，当凉也。
妇人肝脉洪大而反结涩，诀云∶涩脉生，妇人败血，若脉洪大而又伏，则积块而血不行
，久则阴门肿，以厥阴脉络门而过。
《脉诀》中说芤脉（中空如葱管的脉象）主失血，芤脉的形态像按压在环子上，两头有感觉，中间弯曲而空缺，并不是指脉搏断绝。如果心脉和肝脉出现芤象，同时肺脉浮且数，或者肺脉微弦且紧，则会出现骨蒸潮热、咯血的症状。
如果心和肺的脉象呈芤象，尺脉紧，膀胱脉滑，小肠脉象异常，则是溺血（尿血）。
如果肝脉芤而肺脉大浮且促，两手尺泽穴处的脉搏微弱，伴有气喘和咯血。
如果肝、心、肺三脉都盛大洪大，但缺乏筋骨之力，脉势乍开乍合，像流水一样，这是金火相传（肺病及心），应当发生吐血。如果心脉微而紧，急促且向上延伸至鱼际穴，急按即来、迟去速，这是肠风证，表现为下血量少，多伴有心悸战栗、畏惧事务、心力不足。如果肝脉长而动，向下贯穿至尺泽穴，心脉大而实，说明三焦血有余，也应当出现下血症状。
如果心脉与肝脉不连续，像滴水刚开始的样子，是鼻衄出血；如果肺脉浮大而散，心脉大，则是突发性的鼻衄。
《脉诀》说：紧脉主虫积或痔疮，必须肝脉也紧且细，才是痔疮；否则就是虫积。
六部脉浮大，缺乏筋骨之力，来势急而去势缓，轻取带有洪象，重按则如濡脉，这是久患疮疖导致血少的表现。如果六部脉浮大但有筋骨之力，肝脉弦而长，肺脉大而实沉，与胃脉相接，胃脉轻取弦而濡，这是三焦血泛溢，胃虚导致的下血。
六部脉象正常，但心脉动，肾脉搏动而沉，又细且数，则是血泄，或者是溺血、便血。
妇女怀孕时，手部的关脉和寸脉滑数，而肺脉虚弱如毛，尺泽凹陷且与关脉不相接，这是怀孕的征象。如果肝脉长而溢出寸口，则是胎漏失血。胎下血有两种情况：一种是肝气微弱，肾脉绵软，胎脉陷下，胎动而失血，应当补益；另一种是肝脉有余而失血，这是胎溢，应当用凉血法治疗。
妇女肝脉洪大反而结涩，《脉诀》说：涩脉主生，对于妇女来说是败血（瘀血）；如果脉象洪大而又伏匿，则是积聚块状物且血液运行不畅，时间久了会导致阴门肿胀，因为足厥阴肝经脉络经过阴门。
The *Mai Jue* (Pulse Classic) states that the Kou pulse (Kou, a hollow pulse resembling a scallion stalk) indicates blood loss. The Kou pulse feels like pressing on a ring: there is sensation at both ends, but it curves and is empty in the middle; this does not mean the pulse has ceased. If the Heart and Liver pulses present with a Kou quality, while the Lung pulse is Floating and Rapid, or if the Lung pulse is Slightly Wiry and Tight, symptoms such as bone-steaming fever and hemoptysis (coughing up blood) will occur.
If the Heart pulse is Kou and the Lung pulse is Soft and Deep, with the Chi (Cun Cun) pulse Deep and Hidden, slightly Tight, this indicates intestinal wind bleeding (hematochezia).
If the Heart and Lung pulses are Kou, the Bladder pulse is Slippery, and the Small Intestine pulse is abnormal, this indicates hematuria (blood in urine).
If the Liver pulse is Kou and the Lung pulse is Large, Floating, and Hasty, with the pulses at the Chize (LU-5) acupoint on both hands being faint, accompanied by panting and hemoptysis.
If the Liver, Heart, and Lung pulses are all Surging and Large, yet lacking "bone strength" (firmness), appearing to open and close intermittently like flowing water, this represents Metal generating Fire (Lung pathology affecting the Heart), indicating impending hematemesis (vomiting blood). If the Heart pulse is Slight and Tight, Hasty, extending upward to the Yuji (LU-10) area, coming quickly upon pressure and departing slowly, this is intestinal wind syndrome, characterized by scant lower bleeding, frequent palpitations/tremors, aversion to tasks, and lack of mental energy. If the Liver pulse is Long and Moving, extending downward through the Chize (LU-5) area, and the Heart pulse is Large and Excess, indicating an excess of blood in the Sanjiao (Triple Burner), lower bleeding should also occur.
If the Liver pulse is Fine, Minute, and Choppy, the Chize (LU-5) pulse is faint, and the Stomach pulse is Soft and Weak, this indicates large intestine bleeding.
If the Heart and Liver pulses are discontinuous, resembling the start of a dripping drop, this is epistaxis (nosebleed). If the Lung pulse is Large, Floating, and Scattered, and the Heart pulse is Large, this indicates sudden epistaxis.
The Pulse Classic states: A Tight pulse indicates parasites or hemorrhoids. It must be that the Liver pulse is also Tight and Fine to diagnose hemorrhoids; otherwise, it indicates parasitic infestation.
If the six pulses are Floating and Large, lacking bone strength, arriving rapidly and departing slowly, feeling Surging with light pressure but Soft (Ru) with heavy pressure, this results from prolonged sores/boils leading to blood deficiency. If the six pulses are Floating and Large but possess bone strength, the Liver pulse is Wiry and Long, the Lung pulse is Large, Excess, and Deep, interfacing with the Stomach pulse which is Slightly Wiry and Soft with light pressure, this indicates flooding of blood in the Sanjiao due to Stomach deficiency, causing lower bleeding.
If the six pulses are normal, but the Heart pulse is Agitated, and the Kidney pulse is Pulsating, Deep, Fine, and Rapid, this indicates bloody diarrhea, or hematuria, or melena.
In pregnant women, if the Guan and Cun pulses on the hand are Slippery and Rapid, while the Lung pulse is Deficient and fine like hair, and the Chize (LU-5) area is depressed and does not interface with the Guan pulse, this indicates pregnancy. If the Liver pulse is Long and overflows into the Cun position, this is fetal leakage with blood loss. There are two types of fetal lower bleeding: one where Liver Qi is weak, the Kidney pulse is soft and limp, the fetal pulse is depressed, and fetal movement causes bleeding, which requires tonification; the other where the Liver pulse is Excess and bleeding occurs, known as fetal overflow, which requires cooling methods.
In women, if the Liver pulse is Surging and Large but paradoxically Knotted and Choppy, the Pulse Classic states: A Choppy pulse implies generation; for women, this signifies retained blood (stasis). If the pulse is Surging, Large, and Hidden, it indicates mass accumulation and stagnant blood. Over time, this leads to swelling of the yin gate (vulva), as the Foot-Jueyin Liver meridian passes through this region.