Acupuncture: What You Need To Know

What is acupuncture?

Acupuncture is a technique in which practitioners insert fine needles into the skin to treat health problems. The needles may be manipulated manually or stimulated with small electrical currents (electroacupuncture). Acupuncture has been in use in some form for at least 2,500 years. It originated from traditional Chinese medicine but has gained popularity worldwide since the 1970s.

How widely is acupuncture used?

According to the World Health Organization, acupuncture is used in 103 of 129 countries that reported data.

In the United States, data from the National Health Interview Survey showed a 50 percent increase in the number of acupuncture users between 2002 and 2012. In 2012, the most recent year for which statistics are available, 6.4 percent of U.S. adults reported they had used acupuncture, and 1.7 percent reported they had used it in the past 12 months.

What is acupuncture used for?

National survey data indicate that in the United States, acupuncture is most commonly used for pain, such as back, joint, or neck pain.

How does acupuncture work scientifically?

How acupuncture works is not fully understood. However, there’s evidence that acupuncture may have effects on the nervous system, effects on other body tissues, and nonspecific (placebo) effects.

• Studies in animals and people, including studies that used imaging methods to see what’s happening in the brain, have shown that acupuncture may affect nervous system function.
• Acupuncture may have direct effects on the tissues where the needles are inserted. This type of effect has been seen in connective tissue.
• Acupuncture has nonspecific effects (effects due to incidental aspects of a treatment rather than its main mechanism of action). Nonspecific effects may be due to the patient’s belief in the treatment, the relationship between the practitioner and the patient, or other factors not directly caused by the insertion of needles. In many studies, the benefit of acupuncture has been greater when it was compared with no treatment than when it was compared with sham (simulated or fake) acupuncture procedures, such as the use of a device that pokes the skin but does not penetrate it. These findings suggest that nonspecific effects contribute to the beneficial effect of acupuncture on pain or other symptoms.
• In recent research, a nonspecific effect was demonstrated in a unique way: Patients who had experienced pain relief during a previous acupuncture session were shown a video of that session and asked to imagine the treatment happening again. This video-guided imagery technique had a significant pain-relieving effect.

What does research show about the effectiveness of acupuncture for pain?

Research has shown that acupuncture may be helpful for several pain conditions, including back or neck pain, knee pain associated with osteoarthritis, and postoperative pain. It may also help relieve joint pain associated with the use of aromatase inhibitors, which are drugs used in people with breast cancer.

An analysis of data from 20 studies (6,376 participants) of people with painful conditions (back pain, osteoarthritis, neck pain, or headaches) showed that the beneficial effects of acupuncture continued for a year after the end of treatment for all conditions except neck pain.

Back or Neck Pain

Osteoarthritis

Headache and Migraine

Myofascial Pain Syndrome

Sciatica

Postoperative Pain

Cancer Pain

Chronic Prostatitis/Chronic Pelvic Pain Syndrome

Irritable Bowel Syndrome

Fibromyalgia

What does research show about acupuncture for conditions other than pain?

In addition to pain conditions, acupuncture has also been studied for at least 50 other health problems. There is evidence that acupuncture may help relieve seasonal allergy symptoms, stress incontinence in women, and nausea and vomiting associated with cancer treatment. It may also help relieve symptoms and improve the quality of life in people with asthma, but it has not been shown to improve lung function.

Seasonal Allergies (Allergic Rhinitis or Hay Fever)

Urinary Incontinence

Treatment-Related Nausea and Vomiting in Cancer Patients

Asthma

Depression

Quitting Smoking

Infertility

Carpal Tunnel Syndrome

Hot Flashes Associated With Menopause

What is auricular acupuncture good for?

• Auricular acupuncture is a type of acupuncture that involves stimulating specific areas of the ear.
• Research on auricular acupuncture for chronic back pain and cancer pain has had promising results.
  • In a 2019 review of 15 studies (930 participants) of auricular acupuncture or auricular acupressure (a form of auricular therapy that does not involve penetration with needles), the treatment significantly reduced pain intensity, and 80 percent of the individual studies showed favorable effects on various measures related to pain.
  • A 2020 review of 9 studies (783 participants) of auricular acupuncture for cancer pain showed that auricular acupuncture produced better pain relief than sham auricular acupuncture. Also, pain relief was better with a combination of auricular acupuncture and drug therapy than with drug therapy alone.
• An inexpensive, easily learned form of auricular acupuncture called “battlefield acupuncture” has been used by the U.S. Department of Defense and Department of Veterans Affairs to treat pain. However, a 2021 review of 9 studies (692 participants) of battlefield acupuncture for pain in adults did not find any significant improvement in pain when this technique was compared with no treatment, usual care, delayed treatment, or sham battlefield acupuncture.

Is acupuncture safe?

• Relatively few complications from using acupuncture have been reported. However, complications have resulted from use of nonsterile needles and improper delivery of treatments.
• When not delivered properly, acupuncture can cause serious adverse effects, including infections, punctured organs, and injury to the central nervous system.
• The U.S. Food and Drug Administration (FDA) regulates acupuncture needles as medical devices and requires that they be sterile and labeled for single use only.

Is acupuncture covered by health insurance?

• Some health insurance policies cover acupuncture, but others don’t. Coverage is often limited based on the condition being treated.
• An analysis of data from the Medical Expenditure Panel Survey, a nationally representative U.S. survey, showed that the share of adult acupuncturist visits with any insurance coverage increased from 41.1 percent in 2010–2011 to 50.2 percent in 2018–2019.
• Medicare covers acupuncture only for the treatment of chronic low-back pain. Coverage began in 2020. Up to 12 acupuncture visits are covered, with an additional 8 visits available if the first 12 result in improvement. Medicaid coverage of acupuncture varies from state to state.

Do acupuncturists need to be licensed?

• Most states license acupuncturists, but the requirements for licensing vary from state to state. To find out more about licensing of acupuncturists and other complementary health practitioners, visit the NCCIH webpage Credentialing, Licensing, and Education.

NCCIH-Funded Research

NCCIH funds research to evaluate acupuncture’s effectiveness for various kinds of pain and other conditions and to further understand how the body responds to acupuncture and how acupuncture might work. Some recent NCCIH-supported studies involve:

• Evaluating the feasibility of using acupuncture in hospital emergency departments.
• Testing whether the effect of acupuncture on chronic low-back pain can be enhanced by combining it with transcranial direct current stimulation.
• Evaluating a portable acupuncture-based nerve stimulation treatment for anxiety disorders.

More To Consider

• Don’t use acupuncture to postpone seeing a health care provider about a health problem.
• Take charge of your health—talk with your health care providers about any complementary health approaches you use. Together, you can make shared, well-informed decisions.

For More Information

NCCIH Clearinghouse

The NCCIH Clearinghouse provides information on NCCIH and complementary and integrative health approaches, including publications and searches of Federal databases of scientific and medical literature. The Clearinghouse does not provide medical advice, treatment recommendations, or referrals to practitioners.

Toll-free in the U.S.: 1-888-644-6226

Telecommunications relay service (TRS): 7-1-1

Website: https://www.nccih.nih.gov

Email: info@nccih.nih.gov(link sends email)

Know the Science

NCCIH and the National Institutes of Health (NIH) provide tools to help you understand the basics and terminology of scientific research so you can make well-informed decisions about your health. Know the Science features a variety of materials, including interactive modules, quizzes, and videos, as well as links to informative content from Federal resources designed to help consumers make sense of health information.

Explaining How Research Works (NIH)

Know the Science: 9 Questions To Help You Make Sense of Health Research

Understanding Clinical Studies (NIH)

PubMed®

A service of the National Library of Medicine, PubMed® contains publication information and (in most cases) brief summaries of articles from scientific and medical journals. For guidance from NCCIH on using PubMed, see How To Find Information About Complementary Health Approaches on PubMed.

Website: https://pubmed.ncbi.nlm.nih.gov/

NIH Clinical Research Trials and You

The National Institutes of Health (NIH) has created a website, NIH Clinical Research Trials and You, to help people learn about clinical trials, why they matter, and how to participate. The site includes questions and answers about clinical trials, guidance on how to find clinical trials through ClinicalTrials.gov and other resources, and stories about the personal experiences of clinical trial participants. Clinical trials are necessary to find better ways to prevent, diagnose, and treat diseases.

Website: https://www.nih.gov/health-information/nih-clinical-research-trials-you

Research Portfolio Online Reporting Tools Expenditures & Results (RePORTER)

RePORTER is a database of information on federally funded scientific and medical research projects being conducted at research institutions.

Website: https://reporter.nih.gov

Key References

• Befus D, Coeytaux RR, Goldstein KM, et al. Management of menopause symptoms with acupuncture: an umbrella systematic review and meta-analysis. Journal of Alternative and Complementary Medicine. 2018;24(4):314-323.
• Bleck R, Marquez E, Gold MA, et al. A scoping review of acupuncture insurance coverage in the United States. Acupuncture in Medicine. 2020;964528420964214.
• Briggs JP, Shurtleff D. Acupuncture and the complex connections between the mind and the body. JAMA. 2017;317(24):2489-2490.
• Brinkhaus B, Roll S, Jena S, et al. Acupuncture in patients with allergic asthma: a randomized pragmatic trial. Journal of Alternative and Complementary Medicine. 2017;23(4):268-277.
• Chan MWC, Wu XY, Wu JCY, et al. Safety of acupuncture: overview of systematic reviews. Scientific Reports. 2017;7(1):3369.
• Coyle ME, Stupans I, Abdel-Nour K, et al. Acupuncture versus placebo acupuncture for in vitro fertilisation: a systematic review and meta-analysis. Acupuncture in Medicine. 2021;39(1):20-29.
• Hershman DL, Unger JM, Greenlee H, et al. Effect of acupuncture vs sham acupuncture or waitlist control on joint pain related to aromatase inhibitors among women with early-stage breast cancer: a randomized clinical trial. JAMA. 2018;320(2):167-176.
• Linde K, Allais G, Brinkhaus B, et al. Acupuncture for the prevention of episodic migraine. Cochrane Database of Systematic Reviews. 2016;(6):CD001218. Accessed at cochranelibrary.com on February 12, 2021.
• Linde K, Allais G, Brinkhaus B, et al. Acupuncture for the prevention of tension-type headache. Cochrane Database of Systematic Reviews. 2016;(4):CD007587. Accessed at cochranelibrary.com on February 12, 2021.
• MacPherson H, Vertosick EA, Foster NE, et al. The persistence of the effects of acupuncture after a course of treatment: a meta-analysis of patients with chronic pain. Pain. 2017;158(5):784-793.
• Qaseem A, Wilt TJ, McLean RM, et al. Noninvasive treatments for acute, subacute, and chronic low back pain: a clinical practice guideline from the American College of Physicians. Annals of Internal Medicine. 2017;166(7):514-530.
• Seidman MD, Gurgel RK, Lin SY, et al. Clinical practice guideline: allergic rhinitis. Otolaryngology—Head and Neck Surgery. 2015;152(suppl 1):S1-S43.
• Vickers AJ, Vertosick EA, Lewith G, et al. Acupuncture for chronic pain: update of an individual patient data meta-analysis. The Journal of Pain. 2018;19(5):455-474.
• White AR, Rampes H, Liu JP, et al. Acupuncture and related interventions for smoking cessation. Cochrane Database of Systematic Reviews. 2014;(1):CD000009. Accessed at cochranelibrary.com on February 17, 2021.
• Zia FZ, Olaku O, Bao T, et al. The National Cancer Institute’s conference on acupuncture for symptom management in oncology: state of the science, evidence, and research gaps. Journal of the National Cancer Institute. Monographs. 2017;2017(52):lgx005.

Other References

Acknowledgments

NCCIH thanks Pete Murray, Ph.D., David Shurtleff, Ph.D., and Helene M. Langevin, M.D., NCCIH for their review of the 2022 update of this fact sheet.

This publication is not copyrighted and is in the public domain. Duplication is encouraged.

NCCIH has provided this material for your information. It is not intended to substitute for the medical expertise and advice of your health care provider(s). We encourage you to discuss any decisions about treatment or care with your health care provider. The mention of any product, service, or therapy is not an endorsement by NCCIH.