Which Japanese needle gauge is considered the thickest?

In Japanese acupuncture, the gauge of the needle is an important consideration as it determines the thickness and thus affects how the needle interacts with the body. The gauge system used for needles may sometimes differ from Western standards, but in general, a lower number indicates a thicker needle.

In this context, the gauge 10 is recognized as the thickest among the given options. It’s common in acupuncture practices to use various needle gauges depending on the treatment needs, but for those requiring deeper penetration or specific therapeutic effects, a thicker needle is often preferred.

Thus, gauge 10 is the correct answer, representing the thickest option among those listed. The other measurements represent thinner needles, commonly used for more superficial acupuncture delivery or sensitive points. Understanding needle gauge is crucial for practitioners to choose the correct tool for their desired therapeutic outcomes.