寒气客于经络，血涩不通，结而成疽。五脏之气，皆出于口；十二经脉，有入齿者，有
连舌本者；荣卫之气，无处不行。虚则受邪挟毒，乘虚而入脉故也。其发口齿者，多血出不
可禁，皆死。
行疽候者，发疮小者如豆，大者如钱，往来匝身，及生面上，谓之行疽。此亦寒热客于
腠理，与血气相搏所生也。
肿起，流之血脉，而挛曲疾痛，所以发疮历年，谓之风疽。此由风湿之气，客于经络，
与气相搏所成也。
《养生方》云∶大解汗，当以粉粉身，若令自干者，成风疽也。
此由寒气客于经络，与血气相搏，血涩结而成疽也。其寒毒偏多，则气结聚而皮浓，状
如痤疖，坚如石，故谓之石疽也。
禽疽，发如胗者数十处。其得四日，肿合牢核痛，其状若变。十日可刺。其初发，身战
寒，齿如噤，欲痉。如是者，十五日死也。此是寒湿之气，客于肌肉所生也。
杼疽者，发项及两耳下。不泻，十六日死。其六日可刺。其色黑，见脓如痈者，死不可
治。人年三十、十九、二十三、三十五、三十九、五十一、五十五、六十一、八十七、九十
九，神皆在两耳下，不可见血，见血者死。此是寒湿之气客于肌肉，折于血气之所生也。
此由寒湿之气，客于皮肤，搏于津液，使血气痞涩，湿气偏多，则发水疽。其肿状如物
裹水，多发于手足，此是随肌肤虚处而发也。亦有发身体数处而壮热，遂至死。
寒气侵入经络，导致血液运行涩滞不通，凝结而形成疽。五脏的气机都上达于口；十二经脉中，有的进入牙齿，有的连接舌根；营气和卫气在体内无处不到。当人体正气虚弱时，容易受到邪气和毒气的侵袭，乘虚进入脉道。凡是发于口齿部位的疽，往往出血不止，多导致死亡。
行疽的症状是：疮疡小的如豆粒，大的如铜钱，在全身游走不定，也发生在面部，这称为行疽。这也是寒热之邪客居腠理，与血气相互搏结所形成的。
肿胀突起，流注血脉，伴有拘挛弯曲和剧烈疼痛，因此疮疡多年不愈，这称为风疽。这是由于风湿之气客居经络，与气机相互搏结而成的。《养生方》说：在大汗之后，应当用米粉扑身，如果让汗水自然风干，就会形成风疽。
这是由寒气客居经络，与血气相互搏结，血液涩滞凝结而成疽。如果寒毒偏盛，则气机结聚而皮肤增厚，形状像痤疮疖子，坚硬如石头，所以称为石疽。
禽疽的症状是：发出数十处类似疹子的疮疡。发病四天后，肿胀合并成坚硬的核块并疼痛，形态发生变化。第十天可以针刺治疗。初发病时，身体战栗恶寒，牙齿打颤似要抽搐痉挛。如果是这种情况，十五天后会死亡。这是寒湿之气客居肌肉所形成的。
杼疽的症状是：发于颈部及两耳下方。如果不进行泻法治疗，十六天后会死亡。第六天可以针刺。如果颜色发黑，出现化脓像痈一样，则是死症，无法治愈。人在三十岁、十九岁、二十三岁、三十五岁、三十九岁、五十一岁、五十五岁、六十一岁、八十七岁、九十九岁时，神气都汇聚在两耳下方，不可见血，见血者死亡。这是寒湿之气客居肌肉，损伤血气所形成的。
这是由寒湿之气客居皮肤，搏结津液，使血气痞塞涩滞，湿气偏盛，从而发为水疽。其肿胀形状如同物体包裹着水，多发于手足部位，这是随着肌肤虚弱之处而发作的。也有发于身体多处且伴有高热，最终导致死亡的。
Cold pathogenic factors invade the meridians, causing blood to become stagnant and unobstructed, condensing to form a *ju* (a deep-seated suppurative disease). The Qi of the five Zang organs ascends to the mouth; among the twelve regular meridians, some enter the teeth, and some connect to the root of the tongue; Ying (Nutritive) Qi and Wei (Defensive) Qi circulate everywhere in the body. When deficiency occurs, one is susceptible to evil pathogens and toxins, which enter the vessels taking advantage of the deficiency. Those that manifest in the mouth and teeth often involve uncontrollable bleeding and are invariably fatal.
Regarding the manifestation of Xing Ju (Migratory Ju): sores appear small as beans or large as coins, wandering around the body and appearing on the face; this is called Xing Ju. This is also generated by cold and heat pathogens lodging in the interstices (Couli), clashing with blood and Qi.
Swelling rises, flowing into the blood vessels, accompanied by spasms, curvature, and rapid pain, so the sore persists for years; this is called Feng Ju (Wind Ju). This is formed by wind-dampness pathogens lodging in the meridians, clashing with Qi. The *Yangsheng Fang* states: After profuse sweating, one should powder the body with starch; if allowed to dry naturally, it will result in Feng Ju.
This arises from cold pathogens lodging in the meridians, clashing with blood and Qi, causing blood stagnation and condensation to form a Ju. If cold toxicity is predominant, Qi knots and accumulates, thickening the skin, resembling acne or boils, hard as stone; thus it is called Shi Ju (Stone Ju).
The manifestation of Qin Ju (Bird/Poultry Ju): dozens of lesions resembling rashes appear. After four days, swelling consolidates into firm nodules with pain, and the appearance changes. It can be treated with acupuncture on the tenth day. At the initial onset, the body trembles with chills, teeth chatter as if in lockjaw, and there is a desire for spasms. In such cases, death occurs after fifteen days. This is generated by cold-dampness pathogens lodging in the muscles.
The manifestation of Zhu Ju: appears on the neck and below both ears. Without purgation, death occurs after sixteen days. Acupuncture can be performed on the sixth day. If the color is black and pus appears like an abscess, it is incurable and fatal. For individuals aged thirty, nineteen, twenty-three, thirty-five, thirty-nine, fifty-one, fifty-five, sixty-one, eighty-seven, and ninety-nine, the Shen (Spirit) resides below both ears; bloodletting must be avoided, as seeing blood leads to death. This is generated by cold-dampness pathogens lodging in the muscles and damaging blood and Qi.
This arises from cold-dampness pathogens lodging in the skin, interacting with body fluids, causing Qi and blood to become obstructed and stagnant. With dampness being predominant, Shui Ju (Water Ju) develops. The swelling resembles something wrapped in water, mostly occurring on the hands and feet; this manifests along areas where the skin and flesh are deficient. There are also cases where multiple areas of the body are affected with high fever, ultimately leading to death.