（下文皆骨度篇古数，然骨之大者则太过，小者则不及，此亦言其则耳。）
〔头部〕
头之大骨，围二尺六寸。
发所覆者，颅至项一尺二寸。（颅，额颅。覆者，言前发际至后项发际也。）
发以下至颐长一尺。（颔中为颐，颔，腮也。）
角以下至柱骨长一尺。（耳上侧旁曰角。肩胛上际颈根曰柱骨。）
两颧相去七寸。
耳前当耳门者，广一尺三寸。
耳后当完骨者，广九寸。（完骨，耳后发际高骨也。）
项发以下至背骨，长三寸半。（自后发际以至大椎，项骨三节处也）。
头部折法，以前发际至后发际，折为一尺二寸。如发际不明，则取眉心直上后至大杼
骨，折作一尺八寸。此为直寸。横寸法，以眼内角至外角比为一寸。头部横直寸法并根据此。
督脉神庭至太阳曲差，曲差至少阳本神，本神至阳明头维，各开一寸半。自神庭至头维，共开四寸半。
〔胸腹部〕
结喉以下至缺盆中，长四寸。（此以巨骨上陷中而言，即天突穴处。）
缺盆以下至 KT 之中，长九寸。
KT 中下至天枢长八寸。（天枢，足阳明穴名，在脐旁。此指平脐而言。）
天枢以下至横骨长六寸半，横骨横长六寸半。（毛际下骨曰横骨。按此古数，以今用上下穴法参较，
多有未合，宜从后胸腹折法为当。）
胸围四尺五寸。
腰围四尺二寸。
两乳之间广九寸半。（当折八寸为当。）
两髀之间广六寸半。（此当两股之中，横骨两头之处，俗名髀缝。）
胸腹折法，直寸以中行为主，自缺盆中天突穴起，至岐骨际上中庭穴止，折作八寸四
分。自 上岐骨际，下至脐心，折作八寸。脐心下至毛际曲骨穴，折作五寸。横寸以两
乳相去，折作八寸。胸腹横直寸法并根据此。
〔背部〕
膂骨以下至尾 二十一节，长三尺。（膂骨，脊骨也。脊骨外小而内巨，人之所以能负任者，以是骨之
巨也。脊骨二十四节，今云二十一节者，除项骨三节不在内。尾 骨男子者尖，女人者平。）
背部折法，自大椎至尾 通折三尺。上七节各长一寸四分一厘，共九寸八分七厘；中
七节各一寸六分一厘，共一尺一寸二分七厘，第十四节与脐平；下七节各一寸二分六厘，共
八寸八分二厘，总共二尺九寸九分六厘。不足四厘者，有零未尽也。直寸根据此，横寸用中指同身寸法。
脊骨内阔一寸。凡云第二行挟脊一寸半，三行挟脊三寸者，皆除脊一寸外，净以寸半
三寸论，故在二行当为二寸，在三行当为三寸半。
〔侧部〕
自柱骨下行腋中不见者，长四寸。（柱骨，颈项根骨也。）
腋以下至季胁，长一尺二寸。（季胁，小肋也。）
季胁以下至髀枢，长六寸。（大腿曰股。股上曰髀。捷骨之下，大股之上，两骨合缝之所曰髀枢，当
足少阳环跳穴处也。）髀枢下至膝中，长一尺九寸。
〔四肢部〕
肩至肘，长一尺七寸。肘至腕，长一尺二寸半。（臂之中节曰肘。）腕至中指本节，长四寸。
（臂掌之交曰腕。）本节至其末，长四寸半。（指之后节曰本节。）
横骨上廉下至内辅之上廉，长一尺八寸。（骨际曰廉。膝旁之骨突出者曰辅骨，内曰内辅，外曰外辅。）
内辅之上廉以下至下廉，长三寸半。（上廉，下廉，可摸而得。）内辅下廉，下至内踝，长一尺三寸。
（踝骨，足掌后两旁高骨也，俗名孤拐骨，内曰内踝。外曰外踝。）内踝以下至地，长三寸。膝以下
至外踝，长一尺六寸。外踝以下至京骨，长三寸。京骨以下至地，长一寸。膝 以下至跗属，长一尺
二寸。（ ，腿弯也。跗，足面也。膝在前， 在后。跗属者，凡两踝前后胫掌所交之处皆为跗之属
也。）跗属以下至地长三寸。足长一尺二寸，广四寸半。
手足折量，并用后中指同身寸法。
(The following content cites the ancient measurement data from the "Bone Proportions" chapter. However, for those with larger bones, the measurements exceed these figures, and for those with smaller bones, they fall short. This merely states the general standard.)
[Head]
The circumference of the major bones of the head is two chi six cun.
The area covered by hair, from the cranial vertex to the nape, measures one chi two cun. (Cranium refers to the frontal bone. "Covered" indicates the distance from the anterior hairline to the posterior nape hairline.)
From the hairline below to the chin measures one chi. (The center of the chin is called Yi; Han refers to the cheeks/jaw.)
From the corners (lateral sides above the ears) down to the pillar bone (the root of the neck at the upper border of the scapula) measures one chi. (The lateral side above the ear is called Jiao. The root of the neck at the upper border of the scapula is called Pillar Bone.)
The distance between the two zygomatic bones is seven cun.
The width at the point in front of the ear corresponding to Ermen (SI 21) is one chi three cun.
The width at the point behind the ear corresponding to Wanggu (GB 12) is nine cun. (Wanggu refers to the prominent bone behind the ear at the hairline.)
From the posterior hairline of the neck down to the dorsal vertebrae measures three and a half cun. (This refers to the distance from the posterior hairline to Dazhui (GV 14), which is located at the third cervical vertebra.)
Method for measuring the head: From the anterior hairline to the posterior hairline is折算 (converted/measured) as one chi two cun. If the hairline is unclear, measure from the midpoint between the eyebrows straight up to the Da Zhu (BL 11) bone, converting it to one chi eight cun. This is the method for longitudinal inches (Zhi Cun). For transverse inches (Heng Cun), the distance from the inner canthus to the outer canthus of the eye is used as one cun. Both longitudinal and transverse measurements of the head follow this standard.
Shenting (GV 24) on the Du vessel to Qucha (BL 7) on the Taiyang vessel; Qucha to Benshen (GB 13) on the Shaoyang vessel; Benshen to Touwei (ST 8) on the Yangming vessel are each separated by one and a half cun. From Shenting to Touwei, the total separation is four and a half cun.
[Chest and Abdomen]
From the laryngeal prominence (Jiehou) down to the middle of Quepen (CV 22 area) measures four cun. (This refers to the depression above the Clavicle bone, i.e., the location of Tiantu (CV 22).)
From Quepen down to the middle of the Xinwo (epigastric region/xiphoid area) measures nine cun.
From the epigastric region down to Tianshu (ST 25) measures eight cun. (Tianshu is an acupoint of the Foot-Yangming Stomach Meridian, located beside the umbilicus. Here it refers to the level of the umbilicus.)
From Tianshu down to Henggu (CV 11) measures six and a half cun; the transverse length of Henggu is six and a half cun. (The bone below the pubic hair is called Henggu. Comparing this ancient data with modern vertical/acupoint selection methods, there are many discrepancies; it is advisable to follow the later mentioned chest-abdomen conversion method.)
The circumference of the chest is four chi five cun.
The circumference of the waist is four chi two cun.
The distance between the two breasts is nine and a half cun. (It should be converted to eight cun for accuracy.)
The distance between the two thighs (inner aspect) is six and a half cun. (This refers to the space between the two femurs, at the ends of the Henggu bone, commonly known as the thigh cleft.)
Method for measuring the chest and abdomen: Longitudinal inches focus on the midline. From Tiantu (CV 22) at Quepen up to Zhongting (CV 12) at the end of the xiphoid process, it is converted to eight cun four fen. From the end of the xiphoid process down to the center of the umbilicus, it is converted to eight cun. From the center of the umbilicus down to Qugu (CV 12) at the pubic hairline, it is converted to five cun. Transverse inches use the distance between the two breasts, converted to eight cun. Both longitudinal and transverse measurements of the chest and abdomen follow this standard.
[Back]
From the spinal column (Lu Gu) down to the coccyx consists of twenty-one segments, measuring three chi. (Lu Gu refers to the vertebral column. The vertebral column is small externally but large internally; humans can bear weight because of the magnitude of these bones. There are twenty-four vertebral segments in total; here it says twenty-one because the three cervical segments are excluded. In men, the coccyx is pointed; in women, it is flat.)
Method for measuring the back: From Dazhui (GV 14) to the coccyx is measured as three chi. The upper seven segments each measure one cun four li, totaling nine cun eight fen seven li; the middle seven segments each measure one cun six fen one li, totaling one chi one cun two fen seven li; the fourteenth segment is level with the umbilicus; the lower seven segments each measure one cun two fen six li, totaling eight cun eight fen two li. The total is two chi nine cun nine fen six li. The remaining less than four li is an uncounted fraction. Longitudinal inches follow this standard; transverse inches use the Middle Finger Same-Body Inch method.
The internal width of the spinal column is one cun. Whenever it mentions the second row one and a half cun from the spine or the third row three cun from the spine, this excludes the one cun width of the spine itself, calculating purely based on one and a half cun or three cun. Therefore, the second row corresponds to two cun, and the third row corresponds to three and a half cun.
[Lateral Side]
From the pillar bone down to the invisible part within the axilla measures four cun. (Pillar bone refers to the bone at the root of the neck.)
From the axilla down to the Ji Xie (hypochondriac region/smallest ribs) measures one chi two cun. (Ji Xie refers to the smallest ribs.)
From the Ji Xie down to Bi Shu measures six cun. (The thigh is called Gu. The upper part of the thigh is called Bi. The junction where the bones meet below the Jie Gu and above the large thigh is called Bi Shu, corresponding to the location of Huantiao (GB 30) on the Foot-Shaoyang Gallbladder Meridian.) From Bi Shu down to the middle of the knee measures one chi nine cun.
[Limbs]
From the shoulder to the elbow measures one chi seven cun. From the elbow to the wrist measures one chi two and a half cun. (The middle section of the arm is called Elbow.) From the wrist to the proximal interphalangeal joint of the middle finger measures four cun. (The junction of the arm and palm is called Wrist.) From this joint to the tip of the finger measures four and a half cun. (The distal segment of the finger is called the proximal joint/Ben Jie in this context.)
From the upper margin of Henggu down to the upper margin of the Neifu (medial condyle of tibia) measures one chi eight cun. (Bone margin is called Lian. The protruding bone beside the knee is called Fu Gu; the medial side is Neifu, and the lateral side is Waifu.)
From the upper margin of Neifu down to the lower margin measures three and a half cun. (Upper and lower margins can be palpated.) From the lower margin of Neifu down to the medial malleolus measures one chi three cun. (The ankle bone is the high bone on both sides at the back of the sole, commonly known as the "lone turn" bone; the medial side is Medial Malleolus, and the lateral side is Lateral Malleolus.) From the medial malleolus down to the ground measures three cun. From the knee down to the lateral malleolus measures one chi six cun. From the lateral malleolus down to Jinggu (BL 64) measures three cun. From Jinggu down to the ground measures one cun. From the knee down to the Fusshu (dorsum of foot area) measures one chi two cun. (Nao refers to the popliteal fossa/back of the knee. Fu refers to the dorsum of the foot. The knee is anterior, and Nao is posterior. Fusshu refers to any area where the tibia/fibula and foot sole intersect around the ankles.) From Fusshu down to the ground measures three cun. The foot is one chi two cun long and four and a half cun wide.
Measurements of hands and feet all use the Middle Finger Same-Body Inch method described later.