What Is Acupuncture?
Acupuncture is a technique in which practitioners stimulate specific points on the body—most often by inserting thin needles through the skin. It is one of the practices used in traditional Chinese medicine.

How much do we know about acupuncture?
There have been extensive studies conducted on acupuncture, especially for back and neck pain, osteoarthritis/knee pain, and headache. However, researchers are only beginning to understand whether acupuncture can be helpful for various health conditions.

What do we know about the effectiveness of acupuncture?
Research suggests that acupuncture can help manage certain pain conditions, but evidence about its value for other health issues is uncertain.

What do we know about the safety of acupuncture?
Acupuncture is generally considered safe when performed by an experienced, well-trained practitioner using sterile needles. Improperly performed acupuncture can cause serious side effects.

What the Science Says About the Effectiveness of Acupuncture
Results from a number of studies suggest that acupuncture may help ease types of pain that are often chronic such as low-back pain, neck pain, and osteoarthritis/knee pain. It also may help reduce the frequency of tension headaches and prevent migraine headaches. Therefore, acupuncture appears to be a reasonable option for people with chronic pain to consider. However, clinical practice guidelines are inconsistent in recommendations about acupuncture.

The effects of acupuncture on the brain and body and how best to measure them are only beginning to be understood. Current evidence suggests that many factors—like expectation and belief—that are unrelated to acupuncture needling may play important roles in the beneficial effects of acupuncture on pain.

What the Science Says About Safety and Side Effects of Acupuncture
Relatively few complications from using acupuncture have been reported. Still, 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, collapsed lungs, and injury to the central nervous system.

This information provided by the U.S. Department of Health and Human Resources, National Institutes of Health, National Center for Complementary and Integrative Health (https://www.nccih.nih.gov/health/acupuncture-in-depth)