凡腰以下肾气主之，肾虚则下部无力，筋骨不用，可服金液丹，再灸关元穴，则肾气复长，自然能行动矣。
若肾气虚脱，虽灸无益。（此证《内经》皆言五脏虚热，故后人有补阴虎潜、金刚、地黄等丸。东垣又作湿热，
而以潜行散为治痿妙药，然不可泥也。虚寒之证亦颇不少，临证审详，自有分晓。）
治验
一老人腰脚痛，不能行步，令灸关元三百壮，更服金液丹强健如前。
暑月饮食冷物，损伤脾肾。脾主土，故见黄色，又脾气虚脱，浊气停于中焦，不得升降，故眼目遍身皆黄，
六脉沉紧。宜服草神丹，及金液、全真、来复之类，重者灸食窦穴百壮，大忌寒凉。（此证第一要审阴阳，阳
黄必身色光明，脉来洪滑，善食发渴，此皆实证，清湿热利小便可愈，若身热脉浮亦可发表。阴黄则身色晦暗，
神思困倦，食少便溏。
脉来无力，重用温补，则小便长而黄白退，若误作阳黄治之，为变非细。又一种胆黄证，因大惊卒恐，胆伤而
汁泄于外，为病最重，惟觉之早，而重用温补者，尚可挽回。）
治验
一人遍身皆黄，小便赤色而涩，灸食窦穴五十壮，服姜附汤、全真丹而愈。
由于脾肾二经，纵酒贪色则伤肾，寒饮则伤脾，故两目遍身皆黄黑色，小便赤少，时时肠鸣，四肢困倦，
饮食减少，六脉弦紧，乃成肾痨。急灸命关三百壮，服草神丹、延寿丹而愈，若服凉药必死。
凡是腰部以下的部位，由肾气所主管。肾气虚弱则下半身无力，筋骨功能减退，可以服用金液丹，再艾灸关元穴，这样肾气就能恢复生长，自然能够行动了。
如果肾气虚脱严重，即使艾灸也没有益处。（这种证候在《黄帝内经》中多被论述为五脏的虚热，因此后世医家使用了补阴虎潜丸、金刚丸、地黄丸等方剂来治疗。李东垣又将其归因为湿热，并将潜行散作为治疗痿证的妙药，然而这些观点不可拘泥不变。实际上，虚寒性质的证候也颇为常见，临证时需仔细审察，自然会有明确的分辨。）
治疗案例：
一位老人腰部和脚部疼痛，无法行走，让他艾灸关元穴三百壮，同时服用金液丹，身体强健如从前。
夏季食用生冷食物，损伤脾肾。脾属土，所以出现黄色；加之脾气虚脱，浊气停滞在中焦，不能正常升降，导致眼睛和全身都发黄，六脉沉紧。适宜服用草神丹，以及金液丹、全真丹、来复丹之类的药物，重症者艾灸食窦穴一百壮，严禁使用寒凉药物。（此证首要任务是辨别阴阳。阳黄必然身体色泽鲜明光亮，脉象洪大滑利，食欲好且易发渴，这些都是实证，通过清除湿热、通利小便即可痊愈；若伴有身热、脉浮，也可以采用解表法。阴黄则身体色泽晦暗无光，精神困倦，饮食减少，大便稀溏，脉象无力，需重用温补之法，这样小便通畅而黄色消退；如果误当作阳黄治疗，变证非轻。还有一种胆黄证，因受大惊或突然恐惧，导致胆受损而胆汁外泄，病情最为严重，只有发现得早并重用温补之法，尚可挽回。）
治疗案例：
一人全身发黄，小便赤色且排尿涩痛，艾灸食窦穴五十壮，服用姜附汤、全真丹后痊愈。
由于脾经和肾经受损，纵欲贪色会伤肾，饮用寒凉之水会伤脾，因此双眼及全身呈现黄黑色，小便赤少，时常肠鸣，四肢困倦，饮食减少，六脉弦紧，从而形成肾痨。急需艾灸命关穴三百壮，服用草神丹、延寿丹后痊愈，如果服用寒凉药物必死无疑。
Whereas the area below the waist is governed by Kidney Qi (Shen Qi, kidney energy), Kidney deficiency leads to weakness in the lower body and dysfunction of the sinews and bones. One may take Jin Ye Dan (Golden Fluid Pill) and moxa-apply the Guan Yuan (CV-4, Sea of Energy) acupoint; then Kidney Qi will recover and growth will resume, allowing natural movement.
If Kidney Qi is exhausted and collapsing, even moxibustion will be of no benefit. (In the *Huang Di Nei Jing* [Yellow Emperor's Inner Canon], this syndrome is generally described as deficient heat in the five zang organs; hence, later physicians prescribed Yin-nourishing formulas such as Hu Qian Wan [Tiger Crouching Pill], Jin Gang Wan [Diamond Pill], and Di Huang Wan [Rehmannia Pill]. Li Dongyuan attributed it to damp-heat and regarded Qian Xing San [Qianxing Powder] as a miraculous remedy for flaccidity syndromes, yet these views should not be rigidly adhered to. In fact, cold-deficiency syndromes are quite numerous; careful clinical examination will clarify the distinction.)
Clinical Case:
An elderly man suffered from pain in his waist and legs, rendering him unable to walk. He was instructed to undergo 300 moxa cones applied to the Guan Yuan (CV-4) acupoint and to take Jin Ye Dan (Golden Fluid Pill); he recovered his strength and returned to normal.
During the summer months, consuming cold foods damages the Spleen and Kidney. The Spleen corresponds to Earth, thus manifesting as yellow discoloration. Furthermore, Spleen Qi deficiency and collapse cause turbid qi to stagnate in the Middle Jiao (Middle Burner), preventing proper ascending and descending movements. Consequently, the eyes and entire body turn yellow, and the six pulse positions are deep and tight. It is appropriate to administer Cao Shen Dan (Grass Spirit Pill), as well as Jin Ye Dan (Golden Fluid Pill), Quan Zhen Dan (Complete Truth Pill), Lai Fu Dan (Returning Revitalization Pill), etc. For severe cases, apply 100 moxa cones to the Shi Dou (ST-23) acupoint. Cold and cooling agents are strictly prohibited. (The primary requirement in treating this syndrome is to distinguish between Yin and Yang. Yang Jaundice is characterized by a bright and lustrous skin color, a surging and slippery pulse, good appetite with thirst; these are excess syndromes that can be cured by clearing damp-heat and promoting urination. If accompanied by fever and a floating pulse, releasing the exterior may also be employed. Yin Jaundice presents with a dull and dark skin color, mental fatigue, poor appetite, loose stools, and a weak pulse; heavy use of warming and tonifying methods is required. This will promote urination and cause the yellow discoloration to fade. If mistakenly treated as Yang Jaundice, the complications will be serious. Another type, Gallbladder Jaundice, arises from sudden fright or terror, damaging the Gallbladder so that bile leaks outward. This condition is extremely severe; only if detected early and treated with heavy warming and tonifying methods can it be salvaged.)
Clinical Case:
A patient presented with generalized yellowing of the body, red urine, and dysuria. After 50 moxa cones were applied to the Shi Dou (ST-23) acupoint, and Jiang Fu Tang (Ginger and Aconite Decoction) and Quan Zhen Dan (Complete Truth Pill) were administered, he recovered.
Due to damage to the Spleen and Kidney meridians, excessive sexual activity injures the Kidney, while drinking cold beverages injures the Spleen. Thus, the eyes and entire body exhibit a yellow-black hue, urine is scanty and red, borborygmus occurs frequently, limbs feel fatigued and heavy, food intake decreases, and the six pulses are wiry and tight, resulting in Kidney Consumption (Shen Lao). Urgent application of 300 moxa cones to the Ming Guan (SP-16? Note: Context implies a specific point, likely ST-25 or similar abdominal point, but text says Ming Guan) acupoint, along with administration of Cao Shen Dan (Grass Spirit Pill) and Yan Shou Dan (Longevity Pill), will lead to recovery. If cooling medicines are taken, death is inevitable.