How deep do acupuncture needles go?

Q: How deep do acupuncture needles go?
A: Acupuncture points are located near or on the surface of the skin. Usually needles are inserted from 1/4 to 1 inch in depth. Depth of insertion will depend on nature of the condition being treated, the patients’ size, age, and constitution, and upon the acupuncturists’ style or school.