凡目睛明能识见者可治睛昏不识人或反目上视或瞪目直视或目睛正圆或戴眼反折或眼胞陷下者皆不治也凡开目而
欲见人者阳证也闭目而不欲见人者阴证也凡目中不了了睛不和热甚于内也凡目疼痛者属阳明之热目赤亦热甚也目瞑者
必将衄血也白睛黄者将发身黄也凡病欲愈目 黄鼻准明山根亮也
鼻头色青者腹中痛苦冷者死微黑者水气黄色者小便难白色者为气虚赤色者为肺热鲜明者有留饮也鼻孔干燥者属阳
明之热必将衄血也鼻孔干燥黑如烟煤阳毒热深也鼻孔冷滑而黑者阴毒冷极也鼻息鼾睡者风温也鼻塞浊涕者风热也鼻孔
扇张者为肺风肺绝而不治也
凡口唇焦干为脾热焦而红者吉焦而黑者凶唇口俱赤肿者热甚也唇口俱青黑者冷极也口苦者胆热也口中甜者脾热也
口燥咽干者肾热也舌干口燥而欲饮水者阳明之热也口噤难言者痉风也凡唇上有疮为狐虫食其藏下唇有疮为惑虫食其肛
也若唇青舌卷唇吻反青环口黧黑口张气直口如鱼口口唇颤摇不止气出不返皆不治也
凡耳叶红润者生黄或白或黑或青而枯燥者死薄而白薄而黑皆为肾败凡耳聋耳中疼皆属少阳之热尚为可治若耳聋舌
卷唇青此属厥阴为难治也
凡舌鲜红者吉青为冷青而紫者为阴为寒也赤而紫者为阳为热也黑者亢极为难治凡舌上苔白而滑者表有寒也又曰丹
田有热而胸中有寒也苔黄而燥渴者热盛也苔黑而燥渴者热甚而亢极也若不燥渴舌上黑苔而滑者为寒为阴也舌卷而焦黑
而燥者阳毒热极也舌青而苔滑者阴毒冷极也凡舌肿胀舌上燥裂舌生芒刺皆热甚也凡舌硬舌强舌短缩神气昏乱语言不清
者死也又阴阳易病吐舌数寸者死也舌乃心之窍属火而色红者吉惟黑者乃水克火故难治也
凡是眼睛明亮、能够看清事物的是可以治疗的；如果眼睛昏花、不能识人，或者眼球向上翻视，或者瞪眼直视，或者眼球固定不动呈正圆形，或者戴眼（眼球上翻固定）伴身体反折，或者眼睑凹陷下陷的，都是无法治疗的。
凡是睁着眼睛想要看人的，属于阳证；闭着眼睛不想看人的，属于阴证。
凡是眼中感觉模糊不清、眼神不和顺的，是体内热邪极盛的表现。
凡是眼睛疼痛的，属于阳明经的热证；眼睛发红也是热邪极盛的表现。
凡是畏光闭眼的，必将发生鼻衄（流鼻血）。
凡是白睛发黄的，将要发生身黄（黄疸）。
凡是疾病快要痊愈时，会出现目眦发黄、鼻尖明亮、山根（鼻梁根部）发亮的现象。
鼻尖颜色发青的，是腹中疼痛且伴有冷证的，预后不良（死证）；颜色微黑的，是有水气病；颜色发黄的，是小便困难；颜色白色的，是气虚；颜色赤红的，是肺热；颜色鲜明润泽的，是有留饮（水饮停留）。
鼻孔干燥的，属于阳明经的热证，必将发生鼻衄。
呼吸时打鼾嗜睡的，是风温病。
鼻塞且有浑浊鼻涕的，是风热病。
凡是口唇焦干，是脾热的表现；焦而红润的，预后良好；焦而发黑的，预后凶险。
嘴唇和口角都红肿的，是热邪极盛。
舌干口燥且想喝水的，是阳明经的热证。
牙关紧闭难以言语的，是痉风病。
凡是嘴唇上有疮，是狐虫侵蚀其内脏；下唇有疮，是惑虫侵蚀其肛门。
如果出现嘴唇发青、舌头卷缩、口唇周围发青、环口黧黑、口开不合、气息直出、口形如鱼嘴、口唇颤抖不止、气息不回返的，都是无法治疗的。
凡是耳廓红润的，主生；如果耳廓颜色黄、白、黑、青且干枯的，主死。耳廓薄而白、薄而黑的，都是肾气败坏的表现。
凡是舌头鲜红的，预后良好；发青的是冷证；青而紫的是阴证、寒证。
红而紫的是阳证、热证。
发黑的，是亢极之象，难以治疗。
凡是舌苔白而滑润的，是表有寒邪；又说这是丹田有热而胸中有寒。
舌苔黄而干燥口渴的，是热邪炽盛。
舌苔黑而干燥口渴的，是热邪极盛且亢极。
凡是舌头肿胀、舌面干燥裂开、舌生芒刺的，都是热邪极盛。
In general, if the eyes are bright and vision is clear, the condition is treatable. If the eyes are dim and unable to recognize people, or if the eyeballs roll upward, or stare fixedly, or remain rigid and round, or exhibit "dai yan" (upward deviation of the eyes) accompanied by opisthotonos, or if the eyelids are sunken, these are all untreatable conditions.
Those who keep their eyes open and wish to see others present a Yang syndrome; those who keep their eyes closed and do not wish to see others present a Yin syndrome.
A sensation of blurriness in the eyes and lack of coordination in gaze indicates excessive heat within the interior.
Eye pain belongs to Heat in the Yangming channel. Redness of the eyes also indicates severe heat.
Photophobia (aversion to light) will inevitably lead to epistaxis (nosebleed).
Yellowing of the sclera indicates that jaundice (body yellowing) is about to develop.
When a disease is about to resolve, one may observe yellowing of the canthi, brightness of the nasal tip, and luminosity at the shangen (root of the nose).
A bluish color of the nasal tip indicates abdominal pain with cold syndrome, which is a fatal prognosis. A slightly blackish color indicates water qi pathology. A yellowish color indicates difficulty in urination. A white color indicates Qi deficiency. A reddish color indicates Lung Heat. A bright and lustrous color indicates retained fluid retention (liu yin).
Dry nostrils belong to Heat in the Yangming channel and will inevitably lead to epistaxis. Dry nostrils with a black color resembling soot indicate severe deep-seated heat from Yang toxicity. Cold, slippery, and black nostrils indicate extreme cold from Yin toxicity.
Snoring during sleep indicates Wind-Warmth. Nasal congestion with turbid discharge indicates Wind-Heat. Flaring of the nostrils indicates Lung Wind or exhaustion of Lung Qi, which is untreatable.
Chapped and dry lips indicate Spleen Heat. Chapped lips that are red and lustrous are auspicious; chapped lips that are black are ominous. Swelling and redness of both lips and mouth indicate severe heat. Cyanosis and blackening of both lips and mouth indicate extreme cold. Bitter taste in the mouth indicates Gallbladder Heat. Sweet taste in the mouth indicates Spleen Heat. Dry mouth and throat indicate Kidney Heat. Dry tongue and mouth with desire to drink water indicate Heat in the Yangming channel. Trismus (lockjaw) and difficulty speaking indicate Jing-Feng (spasm wind).
Sores on the upper lip indicate Hu-Chong (roundworms) damaging the internal organs; sores on the lower lip indicate Huo-Chong damaging the anus. Conditions such as cyanotic lips, curled tongue, perioral cyanosis, blackening around the mouth, open mouth with straight airflow, fish-mouth appearance, continuous trembling of the lips, and non-returning breath are all untreatable.
Red and lustrous earlobes indicate life; yellow, white, black, or cyanotic and dry earlobes indicate death. Thin and white or thin and black earlobes both indicate failure of the Kidneys. Deafness and ear pain belong to Heat in the Shaoyang channel and are still treatable. However, deafness combined with a curled tongue and cyanotic lips belongs to the Jueyin channel and is difficult to treat.
A fresh red tongue is auspicious. A blue tongue indicates cold; blue and purple indicates Yin and cold. Red and purple indicates Yang and heat. Black indicates extreme hyperactivity and is difficult to treat. A white and slippery tongue coating indicates exterior cold. It is also said that this represents Heat in the Dantian and Cold in the chest. A yellow and dry tongue coating with thirst indicates abundant heat. A black and dry tongue coating with thirst indicates extreme and hyperactive heat. If there is no thirst, but the tongue has a black and slippery coating, it indicates Cold and Yin. A curled, scorched-black, and dry tongue indicates extreme heat from Yang toxicity. A blue tongue with a slippery coating indicates extreme cold from Yin toxicity. Tongue swelling, dry and cracked surface, and prickles on the tongue all indicate severe heat. Stiff, rigid, or shortened tongue, along with mental confusion and unclear speech, indicates death. In the case of Yin-Yang Yi disease, protrusion of the tongue for several cun indicates death. The tongue is the orifice of the Heart and belongs to Fire; a red color is auspicious. Only black indicates Water overcoming Fire, hence it is difficult to treat.