What is Acupuncture?

Acupuncture is a technique of inserting and manipulating filiform needles into "acupuncture points" on the body with the aim of restoring health and well-being, e.g. treating pain. The definition and characterization of these points is standardized by the World Health Organization (WHO). Acupuncture is thought to have originated in China and is most commonly associated with Traditional Chinese medicine (TCM). Different types of acupuncture (Japanese, Korean, and classical Chinese acupuncture) are practiced and taught throughout the world.

Scientists are studying the mechanisms and efficacy of acupuncture. According to the protocols of evidence-based medicine, there is good evidence that acupuncture is effective in treating nausea and chronic low back pain, and moderate evidence for neck pain and headache. The WHO, the National Center for Complementary and Alternative Medicine (NCCAM) of the National Institute of Health (NIH), the American Medical Association (AMA) and various government reports have also studied and commented on the efficacy of acupuncture. There is general agreement that acupuncture is at least safe when administered by well-trained practitioners, and that further research is warranted.

Traditional Chinese medicine acupuncture theory predates use of the scientific method, and has received various criticisms based on modern scientific thinking. There is no known anatomical or histological basis for the existence of acupuncture points or meridians. Acupuncturists tend to perceive TCM concepts in functional rather than structural terms, i.e. as being useful in guiding evaluation and care of patients. Neuroimaging research suggests that certain acupuncture points have distinct effects that are not otherwise predictable anatomically.

The acupuncturist decides which points to treat by observing and questioning the patient in order to make a diagnosis according to the tradition which he or she utilizes. In TCM, there are four diagnostic methods: inspection, auscultation and olfaction, inquiring, and palpation (Cheng, 1987, ch. 12). Inspection focuses on the face and particularly on the tongue, including analysis of the tongue size, shape, tension, color and coating, and the absence or presence of teeth marks around the edge.

Auscultation and olfaction refer, respectively, to listening for particular sounds (such as wheezing) and attending to body odor. Inquiring focuses on the "seven inquiries", which are: chills and fever; perspiration; appetite, thirst and taste; defecation and urination; pain; sleep; and menses and leukorrhea. Palpation includes feeling the body for tender "ashi" points, and palpation of the left and right radial pulses at two levels of pressure (superficial and deep) and three positions Cun, Guan, Chi(immediately proximal to the wrist crease, and one and two fingers' breadth proximally, usually palpated with the index, middle and ring fingers). Other forms of acupuncture employ additional diagnosic techniques. In many forms of classical Chinese acupuncture, as well as Japanese acupuncture, palpation of the muscles and the hara (abdomen) are central to diagnosis.

There are also theories being developed to explain effects observed for acupuncture within the orthodox Western medical paradigm.