How long is the measurement from the knee crease to the lateral malleolus?

The measurement from the knee crease to the lateral malleolus is traditionally defined in traditional Chinese medicine as roughly 16 cun. This is based on the standard anatomical unit of measurement known as "cun," which is a representation of the width of the patient's thumb and varies based on the individual's body size but is standardized for practice.

In this context, a cun is approximately equal to the width of the patient's thumb, allowing practitioners to use body measurements as a guide for acupuncture point location. The correct measurement of 16 cun from the knee crease to the lateral malleolus aligns with established acupuncture meridian assessments, making it a fundamental piece of knowledge for practitioners. Understanding this measurement helps in accurately locating points along the leg, which is crucial for effective acupuncture treatment.