There are five acupoints on the twelve mainmeridians located below the elbows and knees, Namely Jing-Well, Ying-Spring, Shu-Stream, Jing-River and He-Sea located on every meridian respectively. Altogether there are 60 such acupoints. Clinically Jing-Well is used to treat mental diseases, febrile diseases and emergent cases; Ying-Spring, Shu-Stream, Jing-River and He-Sea are used to treat the diseases located on regions over which the meridians run along the surface of the body.
The Shu-Stream acupoints on the yin meridians are used to treat disorders of the zang organs while the He-Sea acupoints on the yang meridians are used to treat disorders of the fu organs. In addition, the selection of the Five-Shu acupoints can be made according to the combination of the Five-Shu acupoints with the five elements for the treatment of diseases in the light of the theory “reducing the Child-acupoint to treat sthenia syndrome and reinforcing the Mother-acupoint to treat asthenia syndrome” according to the inter-restraining and inter-promoting relation ships between the meridians and acupoints. The combination of yin meridians and yang meridians with the five elements is shown in Table 4 - 1 and 4 - 2.