下利身凉脉小为顺。身热脉大为逆。下利脉反实者死。
发热下利至甚厥不止者死。
直视谵语下利者死。
手足厥冷无脉，灸之不温，脉不还者死。
少阴证自利，复烦躁不得卧寐者死。
以上皆邪拥盛，正气下脱而死者也。
曰六腑气厥于外，手足寒；五脏气绝于内，下利不禁。
又下利右关脉弦者死，是胃虚不胜也，治以理中辈，得胃脉缓者生。
又伤寒六七日，脉迟下利而热，当与黄芩汤彻其热。
腹中应冷当不能食，今反能食，名曰除中死。能食者是热，热未去也，此脾
经邪热未去，而胃气去矣。
筋惕 跳也，肉 动也。
由发汗过多，津液枯少，阳气大虚，筋肉失养。
太阳病脉微弱，汗出恶风，不可服青龙，服之则筋跳肉动。
又太阳病发汗，汗出不解，仍发热头眩，身动振振欲擗地，真武主之。动气
在左右不可汗，汗则头眩身动，治宜温经益阳。
有吐下后发汗，表里俱虚，此又甚也。
吐下后发汗，虚烦，脉甚微，八九日心下痞，胁下痛，气上冲咽喉，眩冒，
筋脉动惕，久而成痿，此逆甚也。
又太阳病发汗复下之，肤动胸烦，面青黄者，难治。此阳气太虚也。若面黄
手足温者，易治，此阳气复也。
热入血室 血室乃经脉留止之处，血海也，冲脉也。
男子 由阳明内热，方得而入，感则下血谵语。
妇人 由太阳经便得，而入则有月水适来适断为异。
中风发热，经水适来，热除脉迟，胸胁下满如结胸状，谵语，此乃邪留于胸
胁不去，当刺期门。
中风七八日，经水适断，寒热有时如疟，此乃血不行也，小柴胡散之。
伤寒发热，经水适来，昼日明了，暮则谵语如见鬼，以血自下无留，邪热随
血散，必自愈也。
下利（腹泻）而身体凉爽、脉象细小的属于顺证。身体发热、脉象洪大的属于逆证。下利而脉象反而实大有力的，预后不良，主死。
手足厥冷、无脉搏，经过艾灸后仍不温暖、脉象不恢复的，预后不良，主死。
少阴病（Shàoyīn disease，少阴经受邪所致的病证）出现自发性下利，随后烦躁不安、无法入睡的，预后不良，主死。
如果说六腑之气厥逆于体表，则手足寒冷；五脏之气绝于体内，则下利无法控制。
另外，下利而右关脉（反映脾胃状况的脉位）呈弦象的，预后不良，这是胃气虚弱不能承受病邪的表现，治疗应用理中汤类方剂，若脉象转为缓和的，则有生机。
另外，伤寒病六七天，脉迟且下利并伴有发热，应当给予黄芩汤（Huangqin Decoction）以清除其热邪。
腹中应当寒冷所以应当不能进食，现在反而能进食，这叫做“除中”（Chúzhōng，指危重病人临终前突然思食的现象），主死。能进食是因为有热，热邪尚未去除，这是脾经的邪热未去，而胃气已经败绝了。
筋惕（Jīntì，筋肉跳动）：跳动的意思，肌肉颤动。
这是由于发汗过多，导致津液枯竭减少，阳气极度虚弱，筋肉失去滋养所致。
太阳病（Tàiyáng bìng，太阳经受邪所致的病证）脉象微弱，出汗且怕风，不可服用大青龙汤（Dà Qīnglóng Tāng），如果服用了，就会导致筋肉跳动、肌肉颤动。
另外，太阳病发汗后，汗出后病仍未解除，仍然发热、头晕目眩，身体震颤动摇，想要跌倒在地，应用真武汤（Zhēnwǔ Tāng）主治。腹部有动气（搏动感）在左右两侧的，不可发汗，发汗则会导致头晕目眩、身体颤动，治疗宜温通经脉、补益阳气。
有在呕吐、泻下之后又发汗的，表里俱虚，这种情况更为严重。
呕吐、泻下之后又发汗，导致虚烦，脉象极微，过了八九天出现心下痞塞、胁下疼痛，气向上冲至咽喉，头晕眼花，筋肉跳动，时间久了会形成痿证（Wěizhèng，肢体萎软无力的病证），这是逆证中非常严重的情况。
另外，太阳病发汗后又用攻下法，导致皮肤跳动、心中烦闷，面色青黄的，难以治疗。这是因为阳气太虚弱了。如果面色黄、手足温暖的，容易治疗，这是因为阳气恢复了。
热入血室（Rè rù xuèsì，热邪侵入血海）：血室是月经停留之处，也就是血海，即冲脉（Chōngmài）。
男子：由阳明经内热引起，热邪进入后，会出现便血、胡言乱语。
妇人：由太阳经直接传入，进入后表现为月经刚好来潮或刚好中断的不同情况。
中风（Zhòngfēng，外感风邪）发热，月经刚好来潮，热退后脉迟，胸胁部胀满像结胸证（Jiéxiōng zhèng，胸胁苦满、按之疼痛的病证）的样子，胡言乱语，这是邪气留在胸胁不去，应当针刺期门穴（Qīmén, LR14）。
中风七八天，月经刚好中断，寒热交替发作像疟疾一样，这是血液运行不畅，应用小柴胡散（Xiǎocháihú Sǎn）疏散之。
Diarrhea accompanied by a cool body and a fine pulse is a favorable sign. Diarrhea accompanied by fever and a large pulse is an unfavorable sign. If diarrhea is accompanied by a surprisingly solid pulse, death ensues.
If fever and severe diarrhea are accompanied by unceasing coldness of the extremities, death ensues.
If staring eyes, delirium, and diarrhea occur together, death ensues.
If the hands and feet are cold, there is no pulse, moxibustion fails to warm them, and the pulse does not return, death ensues.
In Shaoyin disease (disease of the Shaoyin channel), spontaneous diarrhea followed by restlessness and inability to sleep indicates death.
All the above conditions result from excessive pathogenic factors and the collapse of healthy qi downwards.
It is said that when Qi of the Six Fu organs rebels externally, the hands and feet become cold; when Qi of the Five Zang organs fails internally, uncontrollable diarrhea occurs.
Furthermore, if diarrhea is accompanied by a wiry pulse at the right Guan position (reflecting the Stomach), death ensues due to Stomach deficiency being unable to withstand the pathogen. Treatment should employ formulas similar to Lizhong Tang (Cinnamon Twig and Atractylodes Macrocephala Decoction); if the Stomach pulse becomes moderate, survival is possible.
Additionally, in Shanghan disease (Cold Damage disease) after six or seven days, if the pulse is slow, diarrhea occurs with fever, Huangqin Tang (Scutellaria Root Decoction) should be administered to clear the heat.
The abdomen should be cold and thus incapable of digesting food; if the patient can suddenly eat, this is called Chuzhong (Elimination of Zhong, indicating imminent death). The ability to eat indicates residual heat that has not yet cleared; this means the pathogenic heat in the Spleen channel remains while the Stomach Qi has perished.
Jinti (Muscle Twitching): Refers to jumping or trembling of the muscles.
This condition arises from excessive sweating, leading to depletion of Body Fluids, extreme deficiency of Yang Qi, and loss of nourishment for the muscles and sinews.
In Taiyang disease (disease of the Taiyang channel), if the pulse is weak, there is sweating and aversion to wind, Da Qinglong Tang (Major Green Dragon Decoction) must not be used. If administered, it will cause muscle twitching and trembling.
Furthermore, in Taiyang disease, if sweating fails to resolve the condition, and fever, dizziness, and body tremors with a desire to fall to the ground persist, Zhenwu Tang (True Warrior Decoction) should be used. If there is pulsation in the abdomen on either side, sweating is contraindicated; sweating would cause dizziness and body tremors. Treatment should focus on warming the channels and benefiting Yang Qi.
There are cases where sweating follows vomiting and purging, resulting in both exterior and interior deficiency, which is even more severe.
After vomiting and purging, if sweating leads to empty irritability, a very faint pulse, and after eight or nine days, epigastric fullness, hypochondriac pain, sensation of Qi rushing up to the throat, dizziness, and muscle twitching, it may eventually develop into Wei syndrome (Flaccidity syndrome), which is a very adverse condition.
Furthermore, in Taiyang disease, if sweating is followed by purging, causing skin twitching and chest irritability, and the complexion is greenish-yellow, the prognosis is difficult due to extreme Yang deficiency. However, if the complexion is yellow and the hands and feet are warm, it is easy to treat, indicating the recovery of Yang Qi.
Re entering the Blood Chamber: The Blood Chamber is the place where menstruation resides, also known as the Sea of Blood and the Chong Mai (Penetrating Vessel).
In men: It results from internal heat in the Yangming channel; once the pathogen enters, it causes bloody stool and delirium.
In women: It is transmitted directly via the Taiyang channel; upon entry, it presents differently depending on whether menstruation has just started or just stopped.
In Wind Strike (Wind-stroke/Exogenous Wind attack) with fever, if menstruation has just started, and after the fever subsides the pulse becomes slow, accompanied by chest and hypochondriac fullness resembling Jie Xiong syndrome (Chest Binding syndrome) and delirium, this indicates pathogenic retention in the chest and hypochondrium. Acupoint Qimen (LR14) should be punctured.
If seven or eight days have passed since Wind Strike, and menstruation has just stopped, with periodic chills and fever resembling malaria, this indicates stagnant blood. Xiaochaihu San (Minor Bupleurum Powder) should be used to disperse it.
In Shanghan disease with fever, if menstruation has just started, the patient is lucid during the day but delirious at night as if seeing ghosts, this is because the blood flows down without stagnation, and the pathogenic heat dissipates with the blood; the condition will heal spontaneously.