Where is the P-4 point located in relation to P-7?

The P-4 point, also known as Pericardium 4, is located 5 cun proximal to P-7, which is the Pericardium 7 point. Understanding the anatomical landmarks of acupuncture points helps in accurately locating them for treatment.

P-7 is situated at the transverse crease of the wrist, specifically on the flexor aspect of the forearm. From this reference point, P-4 is located 5 cun (anatomical unit of measurement, typically based on the size of the patient's own hand width) up the arm, between the tendons of the palmaris longus and flexor carpi radialis. This positioning is critical as it helps practitioners access the point effectively for therapeutic purposes.

Recognizing the correct distance and placement between acupuncture points is fundamental in acupuncture practice, as it directly influences treatment efficacy.