How thick are acupuncture needles?
The needles are very thin, not much thicker than hair. The most commonly used needles are between 38 and 32 gauge. They are not like the needles used for injections which are hollow for the transmission of medicine or the withdrawal of body fluids. Most people associate needles with getting an injection or having blood drawn which is generally painful. Most patients are usually pleasantly surprised that the insertion of the fine acupuncture needles are virtually painless.
