What is the distance measured from the posterior hairline to Du14?

The distance measured from the posterior hairline to Du14 is defined as 3 cun. In Traditional Chinese Medicine, and specifically within acupuncture practice, 'cun' is a unit of measure that is based on the individual's body. It is commonly utilized to locate acupuncture points accurately.

The posterior hairline serves as a reference point for various acupuncture measurements. Du14, situated at the midpoint of the nuchal line of the skull, is an important point for treating conditions related to the head and neck.

Understanding the anatomical references is crucial for practitioners in positioning needles effectively and ensuring treatment efficacy. Therefore, the distance of 3 cun from the posterior hairline to Du14 is a standard measurement that aligns with the established guidelines for acupuncture point localization. This knowledge is particularly useful for practitioners when assessing the anatomical landmarks during treatment.