What is the anatomical reference for locating BL-20?

The anatomical reference for locating the acupuncture point BL-20, also known as Pi Shu, is indeed positioned 1.5 cun lateral to the tenth thoracic vertebra (T10).

This location is crucial for practitioners because BL-20 is associated with the spleen and influences the digestive system, conditions, and overall energy. To find this point, practitioners first identify the T10 vertebra by palpating from the bottom of the scapula where T7 is located, then move downwards to T10. From that point, using the cun measurement, which is based on the patient's body proportions (with one cun typically measured as the width of the patient's thumb), practitioners measure outwards 1.5 cun to find BL-20 on the back.

Locating acupuncture points accurately is essential for effective treatment, and knowing spinal landmarks assists acupuncturists in providing precise and targeted interventions.