Chiropractic, also known as chiropractic care, is a health care discipline that claims to prevent and treat health problems by using spinal adjustments in order to correct spinal dysfunction, or subluxations. Chiropractic asserts that the brain and nervous system control and coordinate all the body's functions in part through nerve branches that exit from the spinal cord between the vertebrae. Some Chiropractors infer a causal relationship between nerve interference or compression at the spine and subsequent problems in more distant parts or organ systems regulated by the nerve.

Practitioners of chiropractic are called chiropractors or chiropractic physicians. In the United States they receive the degree Doctor of Chiropractic, (D.C.) and commonly refer to themselves as doctor. Chiropractors are licensed in all jurisdictions of the United States of America, in addition to many other countries throughout the world.

There is some limited objective clinical data or peer-reviewed research that demonstrates efficacy to certain chiropractic therapies. Chiropractic claims to be effective in the treatment of back and neck pain, headaches, and other symptoms that chiropractic views of spine-related conditions (although some medical science often disagrees with these assumptions).