Acu-moxa point chart, showing the
intestinal wind (changfeng) point, from
Chuanwu lingji lu (Record of Sovereign Teachings), by Zhang Youheng, a treatise on acu-moxa in two volumes. This work survives only in a manuscript draft, completed in 1869 (8th year of the Tongzhi reign period of the Qing dynasty). It is illustrated with 84 charts, finely executed in colour.
The text states: The intestinal wind point is beneath the fourteenth vertebra, 1 cun [Chinese/proportional inch = c. 3 cm] to either side. Moxibustion at this point can cure intestinal wind, bloody bowel discharge (xiaxue) and chronic haemorrhoids of many years duration.