《病源论》云∶凡香港脚病，皆由感风毒所致也。初得此病，多不即觉，或先无他疾，而
忽得
苏敬论云∶夫香港脚为病，本因肾虚，多中肥溢、肌肤虚者。无问男女，若瘦而劳苦，肌
肤薄
亦
唐侍中论云∶凡香港脚病者，盖由暑湿之气郁积于内，毒厉之风吹薄其外之所致也。
徐思恭论云∶此病多中闲乐人，亦因久立冷湿地，此病多或踏热来即冷水浸脚；或房室
过度
又云∶清湿袭虚，则病起于下；风雨袭虚，则病起于上。又身半以上者风中之，身半已
下者
《千金方》云∶凡四时之中，皆不得久立久坐湿冷之地，亦不得因酒醉汗出，脱衣靴帽，
当
又云∶夫风毒之气，皆起于地。地之寒暑风湿，皆作蒸气。足常履之，所以风毒之中人
也，
《极要方》云∶此病有数种，有饮气下流以成香港脚，饮气即水气之冲；亦有肾气先虚，
暑月承以冷水洗脚，湿气不散；亦有肾气既虚，诸事不节，因居卑湿，湿气上冲，亦成香港脚。
《病源论》云∶凡香港脚，此病之初甚微，饮食嬉戏，气力如故，当熟察之。其状，自膝
至脚，有不仁，或若痹，或淫淫（流貌也）如虫行所缘，或脚指及膝胫洒洒（桑冷反，恶寒
貌）尔
饮食者
反）腹，径上撞心，气上者；或有举体转筋者，或壮热头痛者；或心胸冲悸，寝处不欲见明
者；或
唐临论云∶此病形候大同小异，或脚冷疼痹；或行忽屈弱；或两胫肿满；或脚渐枯细；
或心
官反，
苏敬论云∶香港脚复发，或似石发，恶寒壮热，头痛，手足逆冷；或似疟发，发作有时；
又似
徐思恭论云∶此病甚微，饮食、嬉戏、语笑、气力如故，卒不令人觉，当熟之。察其状，
自
行；
之微。
又云∶初得之时，即或脚趺肿，或脚胫肿，渐渐向上；或由来不肿，唯缓弱顽痹，行卒
屈倒
《短剧方》云∶风毒中人，多不即觉，或因众病乃觉也。其状或有见食呕吐，憎闻食臭；
或
或
病
《千金方》云∶风毒之中人也，或见食呕吐，憎闻食臭；或有腹痛下利；或大小便秘涩
不通
体酷
体挛（
又云∶其人本黑瘦者易治，本肥大肉浓赤白者难愈。
《极要方》云∶香港脚皆令人脚胫大肿，趺肿重闷。甚者上冲心，肿满闷，气短。中间有
干湿者二香港脚∶湿者脚肿；干者脚不肿，渐觉枯燥，皮肤甲错。须细察之。
The *Zhu Bing Yuan Hou Lun* (Treatise on the Pathogenesis and Manifestations of All Diseases) states: Generally, Hong Kong Foot disease (a term historically referring to beriberi or gout-like conditions in ancient texts, characterized by swelling and weakness of the legs) is caused by contracting Wind-Toxin. When first contracting this disease, one often does not immediately realize it; there may be no prior illness, yet suddenly the disease appears.
Su Jing discusses: As a disease, Hong Kong Foot originates fundamentally from Kidney Deficiency, and mostly affects those who are obese with deficient and weak skin and muscles. Regardless of gender, if one is thin and engaged in arduous labor, with thin skin... [Text missing]
Attendant General Tang discusses: Generally, those suffering from Hong Kong Foot disease are affected because Summer-Heat and Dampness Qi accumulate and stagnate internally, while Toxic and Fiendish Wind attacks externally... [Text incomplete]
Xu Sigong discusses: This disease mostly affects those who live idle and pleasurable lives. It also occurs due to standing for long periods in cold and damp places. Often, people step on hot ground and then immediately soak their feet in cold water; or engage in excessive sexual activity... [Text missing]
It is also said: Clear and Cold Dampness attacking deficiency causes disease to arise from below; Wind and Rain attacking deficiency causes disease to arise from above. Furthermore, the upper half of the body is struck by Wind, while the lower half... [Text missing]
The *Qian Jin Fang* (Essential Prescriptions Worth a Thousand Gold) states: In all four seasons, one must not stand or sit for long periods in cold and damp places. One must not remove clothes, shoes, or hats when drunk and sweating; one should... [Text missing]
It is also said: The Qi of Wind-Toxin arises from the ground. The cold, heat, wind, and dampness of the ground all transform into steam. Since the feet constantly tread upon it, thus Wind-Toxin attacks humans... [Text missing]
The *Ji Yao Fang* (Extremely Important Prescriptions) states: This disease has several types. There is Hong Kong Foot formed by drinking Qi flowing downward; Drinking Qi refers to Water Qi rushing upward. There is also Hong Kong Foot where Kidney Qi was previously deficient, and during summer months, feet were washed with cold water, causing Dampness not to dissipate. There is also Hong Kong Foot where Kidney Qi is already deficient, various activities are not regulated, and living in low, damp places causes Dampness to rush upward, also forming Hong Kong Foot.
The *Zhu Bing Yuan Hou Lun* states: Generally, regarding Hong Kong Foot, at the beginning of this disease, symptoms are very subtle. Diet, play, and physical strength remain as usual; one must examine it carefully. Its manifestations include numbness (Bu Ren) from the knees to the feet, or sensations resembling Bi Syndrome (Obstruction), or a crawling sensation like insects moving along the meridians (Yin Yin), or chills in the toes and calves (Sa Sa). ... [Text missing]
Dietary factors... [Text missing]
Reversing abdomen, directly striking the Heart with ascending Qi; or whole-body muscle spasms; or severe fever and headache; or palpitations in the chest and heart, unwillingness to see light while resting; or... [Text missing]
Tang Lin discusses: The manifestations of this disease are largely similar with minor differences. Or cold pain and numbness in the feet; or sudden weakness and bending when walking; or swelling and fullness in both calves; or gradual wasting and thinning of the feet; or Heart... [Text missing]
Organ reversal... [Text missing]
Su Jing discusses: Recurrence of Hong Kong Foot may resemble Shi Fa (Stone Eruption), with aversion to cold and high fever, headache, and cold extremities; or resemble Malaria (Nue) with periodic attacks; or resemble... [Text missing]
Xu Sigong discusses: This disease is very subtle. Diet, play, talking, laughing, and physical strength remain as usual; it suddenly goes unnoticed by people. One must examine it carefully. Observing its manifestations, from... [Text missing]
Walking... [Text missing]
Subtlety... [Text missing]
It is also said: At the initial stage, either the dorsum of the foot swells, or the calves swell, gradually spreading upward; or previously no swelling, only sluggishness, weakness, and stubborn numbness, sudden falling when walking... [Text missing]
The *Duan Ju Fang* (Short Drama Prescriptions) states: When Wind-Toxin attacks humans, it is often not immediately noticed, or it is noticed only amidst other illnesses. Its manifestations may include vomiting upon seeing food, and aversion to the smell of food; or... [Text missing]
Or... [Text missing]
Disease... [Text missing]
The *Qian Jin Fang* states: When Wind-Toxin attacks humans, one may vomit upon seeing food and hate the smell of food; or have abdominal pain and diarrhea; or constipation and difficulty in urination and defecation... [Text missing]
Body harsh... [Text missing]
Body cramping... [Text missing]
It is also said: Those who are originally dark-skinned and thin are easier to treat; those who are originally fat, large, with thick flesh, and red/white complexion are difficult to cure.
The *Ji Yao Fang* states: Hong Kong Foot causes everyone's calves to swell greatly, with heavy and stifling swelling on the dorsum of the feet. Severe cases rush upward to strike the Heart, with swelling, fullness, stifling sensation, and shortness of breath. Among them, there are two types of Dry and Wet Hong Kong Foot: Wet type features swollen feet; Dry type features non-swollen feet, gradually feeling dry and rough, with skin resembling fish scales (Jia Cuo). One must examine carefully.