治伤寒及温病，应发汗而不汗，内蓄为瘀血；及鼻衄吐血不尽，余血停留
，致面黄，大便黑。
犀角（一两） 生地黄（八两） 芍药（三两） 牡丹皮（二两）
上为锉散。每服四钱，水一盏半，煎七分，去滓。狂者，加大黄二两、黄芩三两。其人脉
大来迟，腹不满，自言满，为无热，但根据方，不须加也。
病者汗出正赤污衣，名曰汗血。皆由大喜伤心，喜则气散，血随气行。妇人产蓐，多有此证。
治产妇大喜，汗出污衣赤色；及膏淋尿血。
草（不拘多少）
上捣取汁二升，醋二合和。空腹饮一杯；或浓煮汁饮。亦治淋沥尿血。
病者大便下血，或清或浊，或鲜或黑，或在便前，或在便后，或与泄物并下，此由内外
有所感伤，凝停在胃，随气下通，亦妄行之类，故曰便血。
治先便后血，谓之远血。兼治吐衄。
伏龙肝（半斤） 甘草(炙) 白术 阿胶 干地黄(《千金》作干姜) 黄芩（各三两）
上为锉散。每服五钱，水一盏，煎七分，去滓，空腹温服。一法，有附子三两炮入。
治疗伤寒及温病，应当发汗却没有发汗，导致体内蓄积形成瘀血；以及鼻出血、吐血后血液未排尽，残留的血液停滞体内，致使面色发黄，大便呈黑色。
将上述药材切碎成散剂。每次服用四钱，加水一盏半，煎煮至七分水量，滤去药渣。若患者出现狂躁症状，加大黄二两、黄芩三两。如果患者脉象初来盛大但随后迟缓，腹部没有胀满感，却自述腹部胀满，这是体内无热的表现，只需按照原方服用，不需要添加药物。
患者出汗时汗水呈正红色染污衣物，称为“汗血”。这通常是由于大喜伤心所致，喜则气机涣散，血液随气机运行而外溢。妇女在产后褥期，多有此类证候。
草（数量不限）
将上述药材捣碎取汁液二升，加入醋二合调和。空腹饮用一杯；或者浓煮汁液饮用。此法也用于治疗淋沥不尽及尿血。
患者大便下血，血色或清稀或浑浊，或鲜红或黑，有的在排便前出血，有的在排便后出血，有的与排泄物混合而下，这是由于内外因素有所感伤，血液凝滞停留在胃中，随着气机下行排出，属于血不循经妄行的类别，所以称为便血。
伏龙肝（半斤） 甘草（炙） 白术 阿胶 干地黄（《千金方》作干姜） 黄芩（各三两）
将上述药材切碎成散剂。每次服用五钱，加水一盏，煎煮至七分水量，滤去药渣，空腹温服。另一种方法，加入炮制过的附子三两。
治疗先出血后排便的，称为“近血”。
赤小豆（五两，浸泡令其发芽后晒干。另一种方法是炒熟至裂开） 当归（一两）
将上述药材研为细末。用浆水送服一方寸匕的药量，每日服用三到四次。
患者因风邪停留于皮肤腠理之间，乘虚侵入肠胃，风邪扰动血液，导致大便排出清稀血液，或排出瘀血，泻下无度，称为“风利”。古方将此症归为蛊痢，这是错误的。
Treats Taiyang disease (Taiyang syndrome) and warm diseases where sweating should have been induced but was not, leading to the internal accumulation of blood stasis; as well as cases where epistaxis (nosebleed) or hematemesis (vomiting blood) is incomplete, with residual blood remaining stagnant, causing a sallow complexion and black stools.
Xijiao (Rhinoceros Horn, 1 liang) Shengdihuang (Rehmanniae Radix Recens, 8 liang) Shaoyao (Paeoniae Radix Alba, 3 liang) Mudanpi (Moutan Cortex, 2 liang)
Grind the above ingredients into a coarse powder. Take 4 qian per dose, add 1.5 sheng of water, decoct until reduced to 0.7 sheng, then strain. For patients exhibiting mania (kuang), add Dahuang (Rhei Radix et Rhizoma, 2 liang) and Huangqin (Scutellariae Radix, 3 liang). If the patient's pulse is initially large but subsequently slow, the abdomen feels full though it is not distended, and the patient complains of fullness, this indicates an absence of heat; follow the original prescription without additions.
When a patient sweats profusely, staining clothes with bright red sweat, it is termed "sweating blood" (hanxue). This is generally caused by excessive joy injuring the Heart (Xin); joy causes qi to dissipate, and blood follows the qi in its movement. Women during the postpartum confinement period often present with this syndrome.
Treats postpartum women who, due to excessive joy, sweat profusely staining clothes red; as well as gao lin (cloudy urine resembling grease) and hematuria (blood in urine).
Caobai (Herba Siegesbeckiae, amount unspecified)
Crush and extract the juice, obtaining 2 sheng. Mix with 2 he of vinegar. Drink one cup on an empty stomach; or decoct thickly and drink. This method also treats dribbling hematuria.
When a patient passes blood from the rectum, the blood may be clear or turbid, fresh red or black, appearing before defecation, after defecation, or mixed with feces. This is caused by external or internal pathogenic factors injuring the body, causing blood to stagnate in the Stomach (Wei) and descend with the qi, representing a type of reckless bleeding; hence it is called "hematochezia" (bianxue).
Treats hematochezia where defecation precedes bleeding, termed "remote blood" (yuanxue). Also treats hematemesis and epistaxis.
Fulonggan (Draconis Os, 0.5 jin) Gancao (Glycyrrhizae Radix et Rhizoma, processed) Baizhu (Atractylodis Macrocephalae Rhizoma) Ejiao (Colla Corii Asini) Shengdihuang (Rehmanniae Radix, dried; *Qianjin Fang* suggests Ganjiang/Zingiberis Rhizoma) Huangqin (Scutellariae Radix) (each 3 liang)
Grind the above ingredients into a coarse powder. Take 5 qian per dose, add 1 sheng of water, decoct until reduced to 0.7 sheng, then strain. Take warm on an empty stomach. Another method includes adding 3 liang of Paofuzi (Aconiti Lateralis Radix Praeparata, processed).
Treats hematochezia where bleeding precedes defecation, termed "proximal blood" (jin xue).
Chixiaodou (Phaseoli Semen Rubrum, 5 liang, soaked until sprouted then dried; another method involves roasting until split) Danggui (Angelicae Sinensis Radix, 1 liang)
Grind the above ingredients into a fine powder. Administer one fangcunbi (a measure equivalent to a square inch spoonful) with jiangshui (fermented grain water), three to four times daily.
When wind pathogens remain in the skin and interstices (couli), invading the intestines and stomach due to deficiency, the wind agitates the blood, resulting in the passage of clear blood or blood stasis, with uncontrolled diarrhea, termed "wind li" (fengli). Ancient formulas classified this as gu li (gu dysentery), which is incorrect.