三阳病结。乃发寒热。下生痈肿。及为痿厥。
大小肠膀胱之脉为三阳结。谓之隔也。
二阳之病。病发心脾。男子少精。女子不月。
手足阳明之脉为二阳结。则为消。心受之。则血不流。脾受之。则味不化。一阳发病。
少气嗽泄。
三焦之脉不利。乃上为咳。下为泄利。
心火不宁。其动若掣。
心掣不定。胸中刺气痞壅。上若咳。下若泄利也。
三阴俱寒。结气化水。痿易不足。四肢不举。
脾肺肝脉为病。
二阴一阳。胀满善气。
心肾胆脉俱逆。故下虚上盛为病。
二阳一阴。病发风厥。
肝胆心主之脉变病。
结阳肢肿。
诸阳脉不行。阴府留结成热。为四肢肿满。
结阴便血。
阴气内结。不得通行。血气无宗。渗入肠。则下血也。
荣虚卫寒。病乃肉苛。肾虚身冷。名为骨痹。肉苛不仁。骨痹腰痛。
血虚则气实。肌肉不仁。致乃 重。肾虚。风寒湿客之。则节挛腰痛。如人身寒。汤火
浓衣不能热。是肾脂枯不长。虚而身冷。
三阳经的病证表现为气机结滞，进而引发寒热往来，下部出现痈肿，以及痿证和厥证。
手太阳、手阳明、足阳明及足太阳等经脉（此处指代广义的三阳经系统）发生结滞，称为“隔”病（指上下阻隔不通）。
二阳经的病证，病变起始于心脾，男子表现为精少，女子表现为月经闭止。
手阳明大肠经与足阳明胃经的脉气结滞，称为“二阳结”，会导致消渴病。若邪气影响心脏，则血液运行不畅；若影响脾脏，则饮食水谷无法运化吸收。
一阳经发病时，表现为气短、咳嗽、泄泻。
手少阳三焦经的脉气不利，向上则引发咳嗽，向下则导致泄泻。
心火不安宁，其症状表现为肢体抽搐掣动。
心脏受邪导致心神不宁、胸中刺痛、气机痞塞壅滞，向上表现为咳嗽，向下表现为泄泻。
三阴经共同感受寒邪，导致气化功能失常而聚水，出现痿证且身体虚弱不足，四肢无法抬举。
这是脾、肺、肝三脏经脉发生的病变。
二阴（少阴）与一阳（少阳）同病，表现为腹胀满、容易嗳气。
这是因为心、肾、胆三脏的脉气都逆乱，导致下虚上盛而发病。
二阳（阳明）与一阴（厥阴）同病，发病为风厥。
这是肝、胆、心包络三脏经脉发生变病所致。
阳气结滞于上部，表现为肢体肿胀。
诸阳经的气血运行不畅，阴分府库留结郁热，导致四肢肿胀满闷。
阴气结滞于下部，表现为便血。
阴气在内结滞，不能正常通行，气血失去统摄，渗入肠道，从而导致下血。
营气虚弱、卫气寒冷，疾病表现为肌肉麻木沉重（肉苛）。
肾气虚导致身体寒冷，名为骨痹。肌肉麻木不仁是肉苛的表现，腰痛是骨痹的症状。
血虚则相对气实，导致肌肉麻木不仁，致使身体沉重。肾虚时，风寒湿邪侵袭，导致关节挛缩、腰痛，感觉身体寒冷，即使穿厚衣、用汤火取暖也不能感到温暖，这是因为肾精枯竭不能生长滋养，导致身体虚弱寒冷。
The pathogenesis of the Three Yang meridians involves Qi stagnation, which subsequently manifests as alternating chills and fever (Han Re), abscesses and swellings in the lower body, as well as Wei syndrome (Flaccidity Syndrome) and Jue syndrome (Cold Extremities).
When the meridians of the Large Intestine, Small Intestine, and Bladder (representing the Yang system) become obstructed, it is termed "Ge" disease (Obstruction/Interruption).
The pathology of the Two Yang meridians originates in the Heart and Spleen; in men, it presents with scanty essence (Shao Jing), and in women, amenorrhea (Bu Yue).
Obstruction of the Hand-Yangming and Foot-Yangming meridians constitutes "Two Yang Obstruction," leading to Xiao Ke (Wasting-Thirst). If the pathogen affects the Heart, blood flow becomes stagnant; if it affects the Spleen, the transformation and transportation of food flavors fails.
When One Yang (Shaoyang) is affected, symptoms include shortness of breath (Shao Qi), cough (Sou), and diarrhea (Xie).
Obstruction of the Sanjiao (Triple Burner) meridian causes cough when affecting the upper jiao and diarrhea when affecting the lower jiao.
Restlessness of Heart Fire manifests as twitching or pulling sensations (Che).
Heart involvement leads to palpitations, stabbing pain in the chest, Qi stagnation and fullness, manifesting upward as cough and downward as diarrhea.
Simultaneous cold invasion of the Three Yin meridians disrupts Qi transformation into fluids, resulting in Wei Yi (flaccidity and weakness) and insufficiency, with inability to move the four limbs.
This indicates pathological changes in the meridians of the Spleen, Lung, and Liver.
Pathology involving Two Yin (Shaoyin) and One Yang (Shaoyang) presents with abdominal distension and frequent belching.
This occurs due to the reversal of Qi in the meridians of the Heart, Kidney, and Gallbladder, causing deficiency below and excess above.
Pathology involving Two Yang (Yangming) and One Yin (Jueyin) presents as Feng Jue (Wind Jue).
This results from pathological changes in the meridians of the Liver, Gallbladder, and Pericardium.
Yang obstruction at the exterior manifests as limb swelling.
When all Yang meridians fail to circulate properly, heat accumulates in the Yin regions, causing swelling and fullness of the four limbs.
Yin obstruction manifests as hematochezia (blood in stool).
Internal stagnation of Yin Qi prevents its smooth circulation; without the control of Qi and Blood, blood leaks into the intestines, causing lower bleeding.
Deficiency of Ying (Nutrient) Qi and Cold of Wei (Defensive) Qi lead to Rou Ke (muscular numbness and heaviness).
Kidney deficiency causing coldness of the body is named Gu Bi (Bone Bi). Numbness characterizes Rou Ke, while lower back pain characterizes Gu Bi.
Blood deficiency leads to relative Qi excess, causing muscular numbness and a sensation of heaviness. In cases of Kidney deficiency, invasion by Wind-Cold-Dampness causes joint contraction and lower back pain. The patient feels cold internally; even thick clothing or hot applications cannot warm the body. This is due to the depletion of Kidney Essence (Zhi), failing to nourish, resulting in deficiency and coldness of the body.