On the line joining Jianliao TB-14 and the olecranon, 3 cun below Jianliao TB-14 which is at the lateral extremity of the acromion. Naohui TB-13 is on the posterior border of deltoid muscle.
How to locate
Abduct the patient's arm and locate two depressions inferior to the acromion in the origin of the deltoid muscle.
Locate Jianliao TB-14 in the posterior depression, below the dorsal aspect of the lateral extremity of the acromion.
Then draw an imaginary line between TB-14 and the olecranon. Naohui TB-13 is on this line, 3 cun distal to TB-14.