痿黄者，犹树木之精滋不足，故萎而黄也。在人为病，本于脾胃有伤，故土色自见
也。盖脾恶湿有为湿蒸，则厥腹膨胀，手足浮肿，黄中带黑，唇燥口秽者，宜服苍术、
半夏、泽泻之类。有得之久病者，其候毛焦体热，阴囊光亮，目黄胞肿，屡食善饥，黄
甚如痘者，宜用茯苓、薄、桂、浓朴之类。又有得之风热之后，气短神倦，黄中带白，
如新出鹅羽，俗名鹅白者，宜针破其手足指尖。盖食指大肠经也，引乃疏壅导塞之意
耳。内服扶脾开胃导水之药为主。有得之食伤者，其候噎逆酸楚，颐浮唇自，黄中带
赤，烦躁口秽，宜用莪术、枳壳、卜子、山楂之类。
龟胸者，胸高胀满，形如覆掌，多因乳母酒面五辛无度所伤，或夏月烦躁，热乳宿
乳与儿。盖肺气最清，为诸脏华盖，水气泛溢，肺为之浮，日久痰滞，则生风热，一触
诸辛，肺气昏乱，是以唇红面赤，咳嗽喘促，溏泻蒸热，由此而成疳，由疳而成龟胸
矣。如药后而复作传变，目睛直视，痰涎壅上或发搐者，难治。龟背者，多因未满半
局，强令坐早，失护背脊，以致客气吹扑，传入于髓，寒则体痿，故传变成斯。又谓五
脏皆系于背，凡五脏受过而成五疳，久则虫蚀脊髓，背骨似折，高露如龟矣。书曰∶腮
肿疳还盛，脊高力已衰，肾无生气，骨无坚长，故为恶症也。
痿黄，就像树木缺乏精微滋养一样，所以枯萎且发黄。在人身上发病，根源在于脾胃受损，所以脾对应的黄色就会显现出来。如果是因湿气蒸腾导致的，会出现腹部膨胀、手足浮肿、面色黄中带黑、嘴唇干燥、口中气味秽浊等症状，适宜服用苍术、半夏、泽泻之类的药物。有的是因为久病所致，症状表现为毛发焦枯、身体发热、阴囊光亮、眼睛发黄且眼睑肿胀、经常进食却容易饥饿、面色黄得像痘疮一样，适宜用茯苓、薄荷、桂枝、厚朴之类的药物。还有的是在感受风热之后患病，出现气短、精神疲倦、面色黄中带白、像刚出壳的小鹅羽毛那样（俗称“鹅白”），适宜针刺破其手足指尖。这是因为食指属于大肠经，这样做是为了疏通壅滞、引导闭塞的意思。内服以扶助脾胃、开胃、导利水湿的药物为主。有的是因饮食损伤所致，症状表现为噎逆、酸楚感、下巴浮肿、嘴唇外翻、面色黄中带红、烦躁不安、口中气味秽浊，适宜用莪术、枳壳、莱菔子、山楂之类的药物。
龟胸，是指胸部高耸胀满，形状像倒扣的手掌，多是因为乳母过量食用酒、面食及五辛（葱、蒜、韭、薤、兴渠）等刺激性食物所伤，或者是夏季孩子烦躁时，给予热奶或隔夜奶喂养所致。肺气的性质最清肃，是五脏六腑的华盖（保护伞），如果水气泛溢，肺气就会上浮，日久导致痰液停滞，进而产生风热，一旦接触到各种辛辣食物，肺气就会昏乱，从而出现嘴唇红、面色赤、咳嗽气喘急促、大便溏泄、蒸蒸发热等症状，由此形成疳积，由疳积进而发展为龟胸。如果用药后病情复发并发生传变，出现两眼直视、痰涎壅盛于上或发生抽搐的情况，则难以治疗。龟背，多是因为婴儿未满半岁，过早强行让其坐立，失去对背脊的保护，致使外邪吹袭，传入骨髓，寒气导致身体痿软，因此传变成为此症。又说法认为五脏都系联于背部，凡是五脏受邪而形成的五种疳证，日久则会虫蚀脊髓，背骨看起来像折断了一样，高高隆起如同龟背。医书说：“腮部肿胀疳证尚属旺盛，脊背高突则体力已衰，肾中无生气，骨骼无法坚固生长，所以这是恶症。”
Wei Huang (Withered Yellow), akin to trees lacking sufficient essence and nourishment, thus becoming withered and yellow. In humans, this disease originates from damage to the Spleen and Stomach, hence the color of Earth (yellow) manifests naturally. If caused by dampness steaming, symptoms include abdominal distension, edema of the hands and feet, a yellow complexion with blackish tints, dry lips, and foul breath; it is suitable to administer herbs such as Cangzhu (Atractylodis Rhizoma), Banxia (Pinelliae Tuber), and Zexie (Alismatis Rhizoma). If resulting from prolonged illness, manifestations include scorched hair, body heat, a shiny scrotum, yellow eyes with swollen eyelids, frequent hunger despite eating, and a yellow complexion resembling smallpox; it is appropriate to use Fuling (Poria), Bohe (Menthae Haplocalycis Herba), Guizhi (Cinnamomi Ramulus), and Houpo (Magnoliae Officinalis Cortex). Another type occurs after contracting wind-heat, presenting with shortness of breath, mental fatigue, a yellow complexion with white tints, resembling the down of a newly hatched goose (commonly known as "Goose White"); in this case, pricking the fingertips of the hands and feet is indicated. This is because the index finger belongs to the Large Intestine Meridian, aiming to unblock congestion and guide out obstruction. Internal treatment primarily focuses on herbs that support the Spleen, open the stomach, and drain water. If caused by food injury, symptoms include hiccuping, acid regurgitation, swelling of the chin, everted lips, a yellow complexion with reddish tints, irritability, and foul breath; it is suitable to use Ezhu (Curcumae Longae Rhizoma), Zhike (Aurantii Fructus Immaturus), Lubozi (Raphani Semen), and Shanzha (Crataegi Fructus).
Gui Xiong (Turtle Chest) refers to a chest that is high, swollen, and full, shaped like an inverted palm. It is often caused by the wet nurse consuming excessive alcohol, wheat products, and the "Five Pungents" (spicy aromatics), or by feeding hot milk or leftover milk to the infant during summer when the child is irritable. Lung Qi is the purest among all organs and serves as the "Canopy" (protective cover) for the five zang organs. When water qi overflows, the Lung floats upward; over time, phlegm stagnates, generating wind-heat. Upon contact with pungent foods, Lung Qi becomes chaotic, leading to red lips, flushed face, coughing, wheezing, loose stools, and steaming fever. Thus, it develops into Gan Syndrome (Infantile Malnutrition), which then progresses to Gui Xiong. If, after medication, the condition recurs and transmits, presenting with fixed staring eyes, phlegm-saliva obstructing the upper jiao, or convulsions, it is difficult to treat. Gui Bei (Turtle Back) is often caused by forcing an infant under six months old to sit too early, neglecting protection of the spine, allowing external pathogenic factors to blow in and penetrate the marrow. Cold causes body withering, leading to this transformation. It is also said that the five zang organs are connected to the back; if the five zang organs suffer and form the five types of Gan, long-term infestation by parasites may erode the spinal cord, making the backbones appear fractured and protruding like a turtle shell. The medical text states: "Swollen cheeks indicate Gan is still vigorous; a high spine indicates strength has declined. With no vital energy in the Kidney and bones lacking firm growth, it becomes a malignant condition."