For most people, there is little or no sensation during acupuncture, however, some individuals are more sensitive and in these cases, an ultra-thin needle can be used instead to make acupuncture much easier and more comfortable. Acupuncture needles are solid and thinner than hypodermic or injection needles. They are 25-50 times thinner than a hypodermic needle and are so thin that several acupuncture needles can go into the middle of a hypodermic needle.

There is little sensitivity to the insertion of acupuncture needles although, some sensations experienced are a dull achiness or pressure around the needles, mild sensation of cramping, tingling, numbness, traveling warmth, heaviness, a mild feeling of energy movement, a slight tingly feeling, or simply an increased sense of relaxation.

Some points are more sensitive depending on which area they are in.

The needles are left in place for twenty to forty minutes. Most people find the experience extremely relaxing and uplifting and even fall asleep for the duration of the treatment.