（左右各一枚，状如石卵，色黑紫，当胃下两旁，入脊膂，附脊之第十四椎，前后与脐平直）
《灵枢》曰∶足少阴之脉，起于小趾之下，斜走足心（涌泉穴也），出于然谷之下，循内踝之后，别入跟中（然
谷，穴名，在内踝前起大骨下陷中。内踝后别入跟中，即太溪、太钟等穴），以上 内，出 内廉（自复溜、
交信，过足太阴之三阴交，以上 内之筑宾，出 内廉之阴谷），上股内后廉，贯脊属肾络膀胱（上股内后廉，
结于督脉之长强，以贯脊中，而后属于肾，前当关元、中极之分，而络于膀胱也。滑氏曰∶由阴谷上股内后廉，
贯脊，会于脊之长强穴，还出于前，循横骨、大赫、气穴、四满、中注、肓俞，当肓俞之所、脐之左右属肾，
下脐过关元、中极而络膀胱也）；其直者，从肾上贯肝膈，入肺中，循喉咙，挟舌本（滑氏曰∶其肓俞属肾处
上行，循商曲、石关、阴都、通谷诸穴，贯肝，上循幽门，上膈，历步廊入肺中，循神封、灵藏、 中、俞府，而上
循喉咙，并人迎，挟舌本而终）；其支者，从肺出络心，注胸中（其支者，自神藏之次，从肺络心，注胸中。
以上俞府诸穴，足少阴经止于此，而接乎手厥阴也。胸中，当两乳之间，亦曰膻中）。其别，名曰大钟，当
踝后绕跟，别走太阳；其别者，并经上走于心包，下外贯腰脊。其病气逆则烦闷，实则闭癃，虚则腰痛，取
之所别也（足少阴之络，名大钟，在足跟后骨上两筋间，别走足太阳者也。言本经从肺出络心，此言上走心包，
下外贯腰脊，故其为病如此。凡治此当取所别之大钟也）。其正，至 中，别走太阳而合，上至肾，当十四椎，
出属带脉；直者，系舌本，复出于项，合于太阳，此为一合，成以诸阴之别，皆为正也（此膀胱与肾为表里，
故其经脉相为一合。足少阴之正，自 中合于太阳，内行上至肾，当十四椎旁肾俞之次，出属带脉；其直者，
上系舌本，复出于项，合于太阳，是为六合之一。然有表必有里，诸阳之正，必成于诸阴之别，非旁通交会也）。
其筋起于小趾之下，并足太阴之筋，斜走内踝之下，结于踵，与太阳之筋合，而上结于内辅之下（足少阴之筋，
起小趾下，斜趋足心；又斜趋内侧，上然谷，并足太阴商丘之次，走内踝之下，结于跟踵之间，与太阳之筋合，
由踵内侧上行，结于内辅骨下阴谷之次），并太阴之筋而上循阴股，结于阴器（自内辅骨下，并太阴之筋，上
循阴股，上横骨与太阴、厥阴、阳明之筋合，而结于阴器者，皆刚筋也），循脊内挟膂上至项，结于枕骨，与
足太阳之筋合（自阴器内行，由子宫上系肾间，并冲脉，循脊两旁，挟膂上至项，与足太阳之筋合，结于枕骨，
内属髓海）。是动则病饥不欲食，面黑如地色，
咳唾则有血，喝喝而喘，坐而欲起，目 如无听见，心如悬若饥状，气不足则善恐，心惕惕如人将捕之，
是谓骨厥。
是主肾所生病者，口热舌干，咽肿上气，嗌干及痛，烦心心痛，黄胆肠 ，脊臀股内后廉痛，痿厥嗜卧，足下
热而痛。盛者寸口大再倍于人迎，虚者寸口反小于人迎也。
（肾脏左右各有一个，形状像石蛋，颜色黑紫，位于胃的下方两侧，深入脊柱肌肉，附着于脊柱第十四椎骨处，前后位置与肚脐平齐）
《灵枢》记载：足少阴肾经的经脉，起始于小趾下方，斜向行走至足心（即涌泉穴），出于然谷穴下方，沿着内踝后方行走，分支进入脚跟中（然谷是穴位名，位于内踝前起大骨下的凹陷中。在内踝后分支进入脚跟中，即太溪、太钟等穴位所在），向上沿小腿内侧后缘行走，出于小腿内侧前缘（从复溜、交信穴经过，越过足太阴脾经的三阴交穴，上行至小腿内侧的筑宾穴，出于小腿内侧前缘的阴谷穴），上行至大腿内侧后缘，贯穿脊柱，归属于肾，联络膀胱（上行至大腿内侧后缘，结于督脉的长强穴，以贯穿脊中，然后归属于肾，前方对应关元、中极穴的区域，而联络于膀胱。滑寿氏说：由阴谷穴上行至大腿内侧后缘，贯穿脊柱，会合于脊部的长强穴，再返回前行，循行横骨、大赫、气穴、四满、中注、肓俞等穴，在肓俞穴所在之处、肚脐的左右两侧归属于肾，下行经过肚脐，过关元、中极穴而联络膀胱）；其直行部分，从肾上行贯穿肝和膈肌，进入肺中，循行喉咙，挟持舌根（滑寿氏说：其在肓俞穴归属肾处上行，循行商曲、石关、阴都、通谷等穴，贯穿肝脏，上行循行幽门，穿过膈肌，历经步廊进入肺中，循行神封、灵藏、神藏、俞府等穴，而上行循行喉咙，并入人迎穴，挟持舌根而终止）；其分支，从肺出，联络心脏，注入胸中（其分支，自神藏穴附近，从肺络属心脏，注入胸中。以上俞府等穴，足少阴经止于此，而接续手厥阴心包经。胸中，位于两乳之间，也称为膻中）。其别络，名为大钟，位于踝后绕跟部，分支走向太阳经；其另一分支，与本经并行上行至心包，向下向外贯穿腰脊。其病证表现为气逆则烦闷，实证则小便闭塞不通，虚证则腰痛，治疗应取该经的别络（足少阴的络脉，名为大钟，位于足跟后骨上两筋之间，分支走向足太阳经。原文说本经从肺出络心，这里说上行至心包，向下向外贯穿腰脊，所以其病症如此。凡治疗此病应当取用该别络的大钟穴）。其正经，行至腘窝中，分支走向太阳经而相合，上行至肾，当第十四椎处，外出归属于带脉；直行的部分，系连舌根，复出项部，与太阳经相合，这称为一合，形成诸阴经的正经，都是由诸阴经的别络构成的（这是膀胱与肾互为表里，所以其经脉相互为一合。足少阴的正经，自腘窝中合于太阳经，内行上行至肾，当第十四椎旁肾俞穴的位置，外出归属于带脉；其直行部分，上行系连舌根，复出项部，与太阳经相合，这是六合之一。然而有表必有里，诸阳经的正经，必由诸阴经的别络来构成，并非旁通交会）。其筋起始于小趾下方，并同足太阴脾经的筋一起，斜向行走至内踝下方，结于脚后跟，与足太阳经的筋相合，而上行结于膝内侧辅骨之下（足少阴经的筋，起始于小趾下，斜趋足心；又斜趋内侧，上至然谷，并同足太阴脾经商丘穴附近，行走至内踝下方，结于脚跟踵之间，与太阳经的筋相合，由踵内侧上行，结于内辅骨下阴谷穴附近），并同太阴经的筋上行循行大腿内侧，结于生殖器（自内辅骨下，并同太阴经的筋，上行循行大腿内侧，上至横骨与太阴、厥阴、阳明经的筋相合，而结于生殖器者，都是刚劲之筋），循行脊柱内部挟持脊背肌肉上行至项部，结于枕骨，与足太阳经的筋相合（自生殖器内行，由子宫上行系连肾间，并冲脉，循行脊柱两旁，挟持脊背肌肉上行至项部，与足太阳经的筋相合，结于枕骨，内属于髓海）。发生变动时会出现以下病症：感觉饥饿但不想进食，面色黑如泥土色，咳嗽唾痰中带血，呼吸急促有声，坐着想要站起来，眼睛昏花好像看不见东西，耳朵鸣响好像听不见声音，心中空虚悬挂如同饥饿的感觉，气不足则容易恐惧，心神惕惕不安好像有人要抓捕自己，这称为骨厥。
本经主治肾脏所生的疾病：口热舌干，咽喉肿痛，气逆上冲，咽干及疼痛，心烦心痛，黄疸，肠澼（痢疾），脊柱、臀部、大腿内侧后缘疼痛，痿厥嗜卧，足底发热而痛。脉象方面，邪气盛则寸口脉搏比人迎脉搏大二倍，正气虚则寸口脉搏反而小于人迎脉搏。
(The kidneys are located on the left and right, one each, shaped like stone eggs, with a black-purple color. They are situated below and on both sides of the stomach, extending into the spinal muscles, attached to the fourteenth vertebra of the spine, aligned horizontally with the umbilicus anteriorly and posteriorly.)
The *Ling Shu* states: The Foot-Shaoyin Kidney Meridian originates from beneath the little toe, slanting towards the sole of the foot (the Yongquan acupoint), emerging below the Ran Gu acupoint, following behind the medial malleolus, and branching into the heel (Ran Gu is an acupoint name, located in the depression below the large bone at the front of the medial malleolus. Branching into the heel behind the medial malleolus refers to the locations of acupoints such as Taixi and Taizhong). It ascends along the posterior medial aspect of the lower leg, emerges at the anterior medial aspect of the lower leg (passing through Fuliu and Jiaoxin, crossing the Sanyinjiao acupoint of the Foot-Taiyin Spleen Meridian, ascending to Zubin on the medial aspect of the lower leg, and emerging at Yin Gu on the anterior medial aspect), ascends along the posterior medial aspect of the thigh, penetrates the spine, connects with the Kidney, and links with the Bladder (ascending to the posterior medial aspect of the thigh, it knots at the Changqiang acupoint of the Du Vessel, penetrating the spinal canal, then connecting with the Kidney; anteriorly corresponding to the regions of Guanyuan and Zhongji, it links with the Bladder. Mr. Hua [Shoushu] stated: From Yin Gu, it ascends along the posterior medial aspect of the thigh, penetrates the spine, meets at the Changqiang acupoint of the spine, returns to the front, follows Henggu, Dahe, Qixue, Siman, Zhongzhu, and Huangshu; at the location of Huangshu, on either side of the umbilicus, it connects with the Kidney, descends past the umbilicus, passes Guanyuan and Zhongji, and links with the Bladder); its straight branch ascends from the Kidney, penetrates the Liver and Diaphragm, enters the Lung, follows the throat, and flanks the root of the tongue (Mr. Hua stated: Ascending from the point where it connects with the Kidney at Huangshu, it follows Shangqu, Shiguan, Yindu, and Tonggu acupoints, penetrates the Liver, ascends along Youmen, crosses the Diaphragm, passes Bulang, enters the Lung, follows Shenfeng, Lingcang, Shencang, and Yufo acupoints, ascends along the throat, joins the Renying acupoint, and terminates flanking the root of the tongue); its branch emerges from the Lung, connects with the Heart, and pours into the Chest (this branch, from near the Shencang acupoint, emerges from the Lung to connect with the Heart, pouring into the Chest. Above the Yufo and other acupoints, the Foot-Shaoyin Meridian ends here and connects with the Hand-Jueyin Pericardium Meridian. The Chest is located between the two breasts, also known as Danzhong). Its collateral is named Dazhong, located behind the ankle, winding around the heel, and branching to the Taiyang Meridian; another branch travels along the main channel upwards to the Pericardium, and downwards and externally through the loins and spine. Pathological manifestations include: Qi rebellion causing irritability and oppression, Excess patterns causing urinary retention or difficulty, Deficiency patterns causing lower back pain; treatment should target the collateral (The collateral of the Foot-Shaoyin Meridian is named Dazhong, located between the two tendons above the bone at the back of the heel, branching to the Foot-Taiyang Bladder Meridian. The text mentions the main channel connecting with the Heart from the Lung, while this part describes ascending to the Pericardium and descending through the loins and spine, hence these symptoms. For treating these conditions, one should select the Dazhong acupoint of this collateral). Its regular pathway reaches the popliteal fossa, branches to the Taiyang Meridian to merge, ascends to the Kidney, at the level of the fourteenth vertebra, and exits to connect with the Dai Mai (Girdle Vessel); the straight branch ties to the root of the tongue, re-emerges at the nape, and merges with the Taiyang Meridian; this is called one combination, forming the regular pathways of the Yin meridians, which are constituted by the collaterals of the Yin meridians (This indicates that the Bladder and Kidney are exterior-interior pairs, so their meridians form a combination. The regular pathway of the Foot-Shaoyin Meridian merges with the Taiyang Meridian in the popliteal fossa, travels internally upwards to the Kidney, at the position beside the Shenshu acupoint at the fourteenth vertebra, and exits to connect with the Dai Mai; its straight branch ascends to tie to the root of the tongue, re-emerges at the nape, and merges with the Taiyang Meridian, constituting one of the Six Combinations. However, for every exterior there must be an interior; the regular pathways of the Yang meridians must be completed by the collaterals of the Yin meridians, not merely by lateral connections or intersections). Its sinews originate from beneath the little toe, running together with the sinews of the Foot-Taiyin Spleen Meridian, slanting towards below the medial malleolus, knotting at the calcaneus, merging with the sinews of the Foot-Taiyang Bladder Meridian, and ascending to knot below the medial condyle of the tibia (The sinews of the Foot-Shaoyin Meridian originate from beneath the little toe, slanting towards the sole; then slanting medially, ascending to Ran Gu, joining near the Shangqiu acupoint of the Foot-Taiyin Spleen Meridian, walking below the medial malleolus, knotting between the heel and calcaneus, merging with the sinews of the Taiyang Meridian, ascending from the medial side of the heel, and knotting near Yin Gu below the medial condyle). Running together with the sinews of the Taiyin Meridian, they ascend along the medial thigh, knotting at the genitalia (From below the medial condyle, running together with the sinews of the Taiyin Meridian, ascending along the medial thigh, meeting the sinews of the Taiyin, Jueyin, and Yangming Meridians at Henggu, and knotting at the genitalia; these are all strong sinews). Following the interior of the spine, flanking the paravertebral muscles, they ascend to the nape, knot at the occiput, and merge with the sinews of the Foot-Taiyang Bladder Meridian (From the genitalia, traveling internally, ascending via the uterus to connect with the area between the Kidneys, joining the Chong Mai, following both sides of the spine, flanking the paravertebral muscles, ascending to the nape, merging with the sinews of the Foot-Taiyang Bladder Meridian, knotting at the occiput, and internally connecting to the Sea of Marrow). When the meridian undergoes pathological changes, diseases manifest as: feeling hungry but having no desire to eat, complexion dark as earth, coughing and spitting blood, panting with audible breathing sounds, wanting to rise when sitting, eyes appearing dim as if unable to see, ears ringing as if unable to hear, the heart feeling empty and suspended like hunger, Qi deficiency leading to frequent fear, mental restlessness as if someone were about to capture them; this is termed Bone Jue (Kidney Meridian Reversal).
This meridian governs diseases generated by the Kidney: heat in the mouth and dryness of the tongue, swelling and obstruction in the throat, rebellious Qi, dryness and pain in the pharynx, vexation and heart pain, jaundice, intestinal dysentery, pain in the spine, buttocks, and posterior medial aspect of the thigh, Wei syndrome with cold extremities and drowsiness, heat and pain in the soles of the feet. In terms of pulse diagnosis, when the pathogenic factor is excessive, the Cun Kou pulse is twice as large as the Ren Ying pulse; when the healthy Qi is deficient, the Cun Kou pulse is smaller than the Ren Ying pulse.