The principle method of acupuncture treatment is by the insertion of fine metal needles into the acupuncture points lying beneath the skin. By stimulating some of the points, certain body functions can be regulated to restore health.
It is quite reasonable to assume that it is painful when a needle is inserted into the body when in fact, if performed by a qualified doctor or acupuncturist only a slight prick is felt when the needle enters the skin, as the acupuncture needles are much finer than conventional needles used for injections or withdrawing blood. When the needles reach the acupuncture point there is another sensation, which is often described as a dull ache – this is rarely described as painful.
Acupuncture & Chinese Herbal Medicine