Chiropractic is a form of alternative medicine mostly concerned with the diagnosis and treatment of mechanical disorders of the musculoskeletal system, especially the spine.
Some proponents, especially those in the field's early history, have claimed that such disorders affect general health via the nervous system, through vertebral subluxation.
The main chiropractic treatment technique involves manual therapy, especially spinal manipulation therapy (SMT), manipulations of other joints and soft tissues.
Chiropractic is well established in the United States, Canada, and Australia.
It overlaps with other manual-therapy professions such as osteopathy and physical therapy.
Most who seek chiropractic care do so for low back pain. Back and neck pain are considered the specialties of chiropractic, but many chiropractors treat ailments other than musculoskeletal issues.
Chiropractic has two main groups: "straights", now the minority, emphasize vitalism, "innate intelligence", and consider vertebral subluxations to be the cause of all disease; "mixers", the majority, are more open to mainstream views and conventional medical techniques, such as exercise, massage, and ice therapy.
Daniel. David. Palmer founded chiropractic in the 1890s, after saying he received it from "the other world", and his son Bartlett. Joshua. Palmer helped to expand it in the early 20th century.
The American Medical Association called chiropractic an "unscientific cult" in 1966 and boycotted it until losing an antitrust case in 1987.
Chiropractic has had a strong political base and sustained demand for services; in recent decades, it has gained more legitimacy and greater acceptance among conventional physicians and health plans in the United States.