歌曰∶寅为三焦手少阳，卯手阳明大肠方，辰手太阳小肠火，巳手厥阴包络乡，午手少阴心
是火，未手太阴肺金乡，申足少阳胆是木，酉足阳明胃土当，戌足太阳膀胱水，亥足厥阴肝木傍，
子足少阴肾属水，丑足太阴脾土乡。
足少阴肾之经、足太阳膀胱经，为足两感。手少阴心之经、手太阳小肠经，为手两感。足太
阴脾之经、足阳明胃之经，为足两感。手太阴肺之经、手阳明大肠经，为手两感。足厥阴肝之经、
足少阳胆之经，为足两感。手厥阴包络经、手少阳三焦经，为手两感。其两感者，表里俱病，内
外受病。凡上下加临，取病之本。《素问》∶曰伤寒病，死在六七日之间，何也？皆两感所受也。
（新添）巨阳者，诸阳之属也，其脉连于风府，故为诸阳之主气也。人之伤于寒者，则为病
热，热虽甚不死，
其两感于寒而病者，必不免于死。伤寒一日，巨阳受之，故头项痛，腰脊强。二日阳明受之，阳
明主肉，其脉挟鼻络于目，故身热目痛而鼻干，不得卧也。三日少阳受之，少阳主胆，其脉循胁
络于耳，故胸胁痛而耳聋。三阳经络皆受其病，而未入于脏者，故可汗而已。四日太阴受之，太
阴脉布胃中，络于嗌，故腹满而嗌干。五日少阴受之，少阴脉贯肾，络于肺，故口燥舌干而渴。
六日厥阴受之，厥阴脉循阴器而络于肝，故烦满而囊缩。其两感于寒者，三阴三阳，五脏六腑皆
受病，营卫不行，五脏不通，则死矣。其不两感于寒者，七日巨阳病衰，头痛少愈，八日阳明病
衰，身热少愈，九日少阳病衰，耳聋微闻，十日太阴病衰，腹满如故，则思饮食，十一日少阴病
衰，渴止不满，舌干已而嚏，十二日厥阴病衰，囊纵，少腹微下，大气皆去，病日已矣。两感于
寒者，病一日巨阳与少阴俱病，则头痛口干而烦满，二日阳明与太阴俱病，则腹满身热不欲食，
谵语，三日少阳与厥阴俱病，则耳聋囊缩而厥不知人，水浆不入，六日死，五脏已伤。
后有传病法，在卷末，开说出三甲口诀。非《素问》说，故载此也。
歌诀说：寅时对应三焦经和手少阳经，卯时对应大肠经和手阳明经，辰时对应小肠经和手太阳经（属火），巳时对应心包络经和手厥阴经，午时对应心经和手少阴经（属火），未时对应肺经和手太阴经（属金），申时对应胆经和足少阳经（属木），酉时对应胃经和足阳明经（属土），戌时对应膀胱经和足太阳经（属水），亥时对应肝经和足厥阴经（属木），子时对应肾经和足少阴经（属水），丑时对应脾经和足太阴经（属土）。
足少阴肾经与足太阳膀胱经同时受邪，称为足两感。手少阴心经与手太阳小肠经同时受邪，称为手两感。足太阴脾经与足阳明胃经同时受邪，称为足两感。手太阴肺经与手阳明大肠经同时受邪，称为手两感。足厥阴肝经与足少阳胆经同时受邪，称为足两感。手厥阴心包络经与手少阳三焦经同时受邪，称为手两感。所谓“两感”，是指表里两经同时发病，内外均受病邪侵袭。凡是在不同时间阶段叠加感受病邪的，要抓住疾病的根本原因来治疗。《素问》中说：伤寒病，为什么在六七天之间死亡呢？都是因为受到了“两感”的病邪所致。（新添内容）巨阳经（即太阳经），是诸阳经的统领，其经脉连接风府穴，所以是诸阳经的主气。人如果受到寒邪侵袭，就会发生热病，即使热势很严重也不会死亡；但如果同时感受寒邪导致两感而发病的，必定难免一死。
伤寒第一天，巨阳经受邪，所以出现头痛、项强、腰脊僵硬的症状。第二天阳明经受邪，阳明经主司肌肉，其经脉夹鼻并联络眼睛，所以出现身体发热、目痛、鼻干、不能安卧的症状。第三天少阳经受邪，少阳经主司胆，其经脉沿胁肋并联络耳朵，所以出现胸胁疼痛和耳聋的症状。如果三阳经的经络都受了病邪，但病邪尚未传入五脏，那么可以通过发汗的方法治愈。第四天太阴经受邪，太阴经的经脉散布在胃中，并联络咽喉，所以出现腹部胀满和咽喉干燥的症状。第五天少阴经受邪，少阴经的经脉贯穿肾脏并联络肺脏，所以出现口燥、舌干且口渴的症状。第六天厥阴经受邪，厥阴经的经脉环绕生殖器并联络肝脏，所以出现心中烦闷、腹胀以及阴囊收缩的症状。如果是两感于寒的情况，三阴三阳经以及五脏六腑都受到病邪侵袭，营卫之气运行停滞，五脏气机不通畅，就会导致死亡。如果不是两感于寒的情况，第七天巨阳经的病势衰退，头痛减轻；第八天阳明经的病势衰退，身热减轻；第九天少阳经的病势衰退，耳聋症状稍有好转，能听到一点声音；第十天太阴经的病势衰退，腹部胀满消退，开始有食欲；第十一天少阴经的病势衰退，口渴停止，腹不满，舌干好转并出现打喷嚏的现象；第十二天厥阴经的病势衰退，阴囊松弛，小腹轻微下坠，大邪之气都已去除，疾病日渐痊愈。
如果是两感于寒的情况，第一天巨阳经与少阴经同时发病，则出现头痛、口干且烦闷；第二天阳明经与太阴经同时发病，则出现腹部胀满、身热、不想进食、胡言乱语；第三天少阳经与厥阴经同时发病，则出现耳聋、阴囊收缩、四肢厥冷且神志不清，无法进水进粮，到了第六天就会死亡，因为五脏已经受损。
后面有关于疾病传变的方法，在卷末，专门阐述了“三甲口诀”。这并非《素问》原文的说法，所以在此记载于此。
The verse states: The Yin hour corresponds to the Sanjiao (Triple Burner) meridian and the Hand Shaoyang meridian; the Mao hour corresponds to the Large Intestine meridian and the Hand Yangming meridian; the Chen hour corresponds to the Small Intestine meridian and the Hand Taiyang meridian (belonging to Fire); the Si hour corresponds to the Pericardium meridian and the Hand Jueyin meridian; the Wu hour corresponds to the Heart meridian and the Hand Shaoyin meridian (belonging to Fire); the Wei hour corresponds to the Lung meridian and the Hand Taiyin meridian (belonging to Metal); the Shen hour corresponds to the Gallbladder meridian and the Foot Shaoyang meridian (belonging to Wood); the You hour corresponds to the Stomach meridian and the Foot Yangming meridian (belonging to Earth); the Xu hour corresponds to the Bladder meridian and the Foot Taiyang meridian (belonging to Water); the Hai hour corresponds to the Liver meridian and the Foot Jueyin meridian (belonging to Wood); the Zi hour corresponds to the Kidney meridian and the Foot Shaoyin meridian (belonging to Water); the Chou hour corresponds to the Spleen meridian and the Foot Taiyin meridian (belonging to Earth).
When the Foot Shaoyin Kidney meridian and the Foot Taiyang Bladder meridian are simultaneously affected, it is called "Foot Lianggan" (Double Contraction of the Foot meridians). When the Hand Shaoyin Heart meridian and the Hand Taiyang Small Intestine meridian are simultaneously affected, it is called "Hand Lianggan". When the Foot Taiyin Spleen meridian and the Foot Yangming Stomach meridian are simultaneously affected, it is called "Foot Lianggan". When the Hand Taiyin Lung meridian and the Hand Yangming Large Intestine meridian are simultaneously affected, it is called "Hand Lianggan". When the Foot Jueyin Liver meridian and the Foot Shaoyang Gallbladder meridian are simultaneously affected, it is called "Foot Lianggan". When the Hand Jueyin Pericardium meridian and the Hand Shaoyang Sanjiao meridian are simultaneously affected, it is called "Hand Lianggan". "Lianggan" refers to the simultaneous disease of exterior and interior meridians, where both internal and external aspects are afflicted by pathogens. In cases of superimposed pathogenic influence at different stages, one must address the root cause of the disease. The *Suwen* (Basic Questions) states: Why does Shanghan (Cold Damage) lead to death between the sixth and seventh days? It is because of the affliction caused by Lianggan. (Newly added content) Juyang (Great Yang, i.e., Taiyang) is the leader among all Yang meridians; its vessels connect to the Fengfu acupoint (GV16), thus serving as the master Qi of all Yang meridians. When humans are injured by Cold, they develop a Heat disease. Even if the Heat is severe, it will not be fatal. However, those who suffer from Lianggan due to Cold will inevitably die.
On the first day of Shanghan, the Juyang meridian is affected, resulting in headache, stiffness of the neck and back, and rigidity of the lumbar spine. On the second day, the Yangming meridian is affected. Yangming governs the flesh; its vessels run along the nose and connect to the eyes. Thus, there is fever, eye pain, dryness of the nose, and inability to sleep. On the third day, the Shaoyang meridian is affected. Shaoyang governs the Gallbladder; its vessels follow the costal region and connect to the ears. Thus, there is pain in the chest and hypochondrium, and deafness. If the channels of the Three Yang meridians are all diseased but the pathogen has not yet entered the Zang organs, it can be cured by inducing sweating. On the fourth day, the Taiyin meridian is affected. The Taiyin vessels distribute in the stomach and connect to the throat. Thus, there is abdominal fullness and dryness of the throat. On the fifth day, the Shaoyin meridian is affected. The Shaoyin vessels pass through the Kidneys and connect to the Lungs. Thus, there is dryness of the mouth, dry tongue, and thirst. On the sixth day, the Jueyin meridian is affected. The Jueyin vessels circulate around the genitalia and connect to the Liver. Thus, there is vexation, fullness, and retraction of the scrotum. In cases of Lianggan with Cold, the Three Yin and Three Yang meridians, as well as the Five Zang and Six Fu organs, are all diseased. Ying and Wei (Nutritive and Defensive Qi) cease to circulate, and the Five Zang organs become obstructed, leading to death. In cases not involving Lianggan, on the seventh day, the Juyang disease declines, and the headache lessens. On the eighth day, the Yangming disease declines, and the body heat subsides slightly. On the ninth day, the Shaoyang disease declines, and hearing improves slightly. On the tenth day, the Taiyin disease declines; abdominal fullness resolves, and appetite returns. On the eleventh day, the Shaoyin disease declines; thirst stops, abdominal distension ceases, the tongue dries up recovers, and sneezing occurs. On the twelfth day, the Jueyin disease declines; the scrotum relaxes, the lower abdomen feels slightly heavy, the major pathogenic factors have departed, and the illness gradually heals.
In cases of Lianggan with Cold: On the first day, Juyang and Shaoyin are simultaneously diseased, causing headache, dry mouth, and vexation/fullness. On the second day, Yangming and Taiyin are simultaneously diseased, causing abdominal fullness, fever, anorexia, and delirious speech. On the third day, Shaoyang and Jueyin are simultaneously diseased, causing deafness, scrotal retraction, cold extremities, unconsciousness, and inability to take in fluids or food. Death occurs on the sixth day because the Five Zang organs are already damaged.
There follows a method of disease transmission, found at the end of the volume, which expounds upon the "Sanjia Formula." This is not a statement from the *Suwen*, hence it is recorded here.