指爪为精血之余，凡于诊候之际，若见干黄，觉有枯槁之色，则其发肤营气，具在吾
目中，而损之微甚，亦可从此而识矣。此可于脉色之外，参观并用，而资其工巧者也。
凡阳虚之人，因气虚也，阳气既虚，即不能嚏。仲景先生曰∶“欲嚏不能，此人肚中
寒，故以阳虚之证，而忽见嚏者，最是回生之佳兆。”
虚损既成，百脉空虚，精血枯涸，使非大投补剂，何以望生？若有不能服诸补之药者，
此为虚不受补也，不治。
劳损吐血失血后，嗽痰不止，而极多极浊者，此其精血饮食，皆化为痰。经曰∶白血
出者死，即其类也，不治。
嗽而下泄上喘者死，或嗽而肛门生 者，亦不治。
左右为阴阳之道路，其有不得左右眠，而认边难转者，此其阴阳之气，有所偏竭也，
嗽而左不得眠肝胀，右不得眠肺胀，皆为死症。
虚损原无外邪，所以病虽至困，终不愦乱，其有别无邪热而忽谵妄失伦者，此神去之
兆，心脏败也，必死。
劳嗽喑哑，声不能出，或喘急气促者，肺脏败也，必死。
嗽而声哑，喉痛不能药食者，不治。
劳损肌肉脱尽者，脾脏败也，必死。
虚损多有筋骨疼痛，若痛至极，不可忍者，此血竭不能荣筋，肝脏败也，必死。
劳损既久，再及大便，泄泻不能禁止者，肾脏败也，必死。
指甲和趾甲是精血盈余外现的部位。在诊察病情时，如果看到指爪干枯发黄，呈现出枯槁无光泽的颜色，那么患者毛发、皮肤以及营气的盛衰状况，就都清晰地呈现在眼前，由此也可以判断虚损病的轻重程度了。这种方法可以在脉象和面色诊断之外，参考并配合使用，以辅助提高诊疗的精准度。
凡是阳气虚弱的人，因为气虚，阳气既然已经虚弱，就不能打喷嚏。张仲景先生说：“想打却打不出来，这是中焦有寒，所以如果是阳虚的证候，忽然出现能打喷嚏的情况，是最为恢复生机的良好征兆。”
虚损病一旦形成，百脉空虚，精血枯竭，如果不是大量投用补益药剂，怎么能指望生存呢？如果有不能服用各种补药的患者，这叫做“虚不受补”，属于不治之症。
劳损导致吐血或失血后，咳嗽痰多不止，而且痰量极大、质地极为浑浊的，这是因为患者的精血和饮食都已化为痰浊。医经上说：“咳出白血的会死亡”，指的就是这类情况，属于不治之症。
咳嗽伴随下利（腹泻）且上部气喘的，主死；或者咳嗽而肛门长出息肉/痔核的，也不治。
左右两侧是阴阳之气运行的道路。如果有无法向左右侧卧，且翻身困难的人，这是阴阳之气有所偏颇衰竭的表现。咳嗽且左侧卧不得安眠导致肝胀，右侧卧不得安眠导致肺胀，都属于死症。
虚损病原本没有外邪侵袭，所以虽然病情困重，最终神志也不会昏乱错乱。如果有既无外邪也无热邪，却忽然出现胡言乱语、失去常理的神志异常，这是心神离散的征兆，心脏功能败坏，必然死亡。
劳嗽导致声音嘶哑，发不出声音，或者喘息急促、气息短促的，是肺脏功能败坏，必然死亡。
咳嗽且声音嘶哑，咽喉疼痛到无法服药进食的，不治。
The fingernails and toenails are the surplus manifestation of essence and blood. During diagnosis, if one observes that the nails are dry, yellow, and exhibit a withered appearance, the condition of the patient's hair, skin, and Ying Qi (Nutritive Qi) becomes clearly visible, allowing for the assessment of the severity of consumptive disease. This method can be used in conjunction with pulse and complexion diagnosis to enhance diagnostic precision.
Individuals with Yang deficiency, due to Qi deficiency, often lack the ability to sneeze when Yang Qi is depleted. Master Zhang Zhongjing stated: "If one desires to sneeze but cannot, there is cold in the middle jiao; therefore, for a patient presenting with Yang deficiency symptoms, the sudden appearance of sneezing is an excellent omen of recovery."
Once consumptive disease is established, the hundred vessels become empty, and essence and blood are exhausted. Without substantial administration of tonic prescriptions, survival is unlikely. If a patient cannot tolerate various tonic medicines, this is termed "deficiency unable to accept tonification," which is incurable.
Following hemorrhage or hemoptysis due to labor damage, if coughing persists with excessive amounts of turbid phlegm, it indicates that both essence/blood and dietary intake have transformed into phlegm. The classics state: "Death occurs when white blood is expectorated," referring to such cases, which are incurable.
Death is indicated by cough accompanied by diarrhea and upper-body wheezing. Similarly, cough accompanied by the growth of polyps/hemorrhoids at the anus is also considered incurable.
The left and right sides are the pathways of Yin and Yang Qi. Inability to lie on either side and difficulty turning over indicates a depletion or imbalance of Yin and Yang Qi. Coughing with inability to sleep on the left leading to Liver distension, or inability to sleep on the right leading to Lung distension, are both fatal conditions.
Consumptive diseases originally lack external pathogens; thus, although the condition may be severe, mental confusion does not typically occur. However, if a patient without external pathogens or heat suddenly exhibits delirium and irrational behavior, this is a sign of spirit departure and Heart failure, inevitably leading to death.
Labor-induced cough resulting in aphonia (inability to speak) or rapid, shortness of breath indicates Lung failure and is fatal.
Cough with hoarseness and throat pain preventing medication and food intake is incurable.
Complete emaciation due to labor damage indicates Spleen failure and is fatal.
Consumptive diseases often involve bone and joint pain. If the pain reaches an unbearable extreme, it signifies blood exhaustion failing to nourish the sinews, indicating Liver failure and inevitable death.
Long-standing labor damage affecting the bowels, resulting in uncontrollable diarrhea, indicates Kidney failure and inevitable death.